Moyer Diebel Dishwasher 401 HTN User Manual

Simply Engineered Better  
Technical Manual  
Undercounter  
Dishwasher  
Model  
401-HT  
401-HTN  
401-LT  
Machine Serial No.  
February, 2003  
Manual P/N 0509604  
REV. G  
2674 N. Service Road  
Jordan Station, Ontario, Canada L0R 1S0  
905/562-4195  
Fax: 905/562-4618  
Moyer Diebel, Ltd.  
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REVISIONS  
Revision History  
Revision  
Date  
Revised  
Pages  
Serial Number  
Effectivity  
Comments  
02/28/97  
09/09/98  
09/09/98  
02/28/00  
07/21/00  
08/22/01  
12/12/01  
11/04/02  
11/04/02  
11/04/02  
2/5/03  
All  
7791  
7791  
7791  
7791  
7791  
Issue of manual and replacement parts lists.  
Changed booster tank part number.  
Changed item 15 hose part number.  
Revised electrical schematic.  
27  
29  
40, 41, 42, 43  
17, 23, 37  
Revised part numbers.  
21  
27  
17  
23  
37  
37  
Revised part numbers.  
Revised fill hose part number.  
Revised part number for front panel.  
Revised part number for pump assembly.  
Revised part number for control cabinet.  
Revised part number 108391 to 113622.  
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THIS PAGE  
INTENTIONALLY  
LEFT BLANK  
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CONTENTS  
CONTENTS  
Page  
INTRODUCTION....................................................................................................................................... 1  
WARRANTY.............................................................................................................................................. 2  
GENERAL .................................................................................................................................................. 3  
INSTALLATION........................................................................................................................................ 5  
Unpacking ............................................................................................................................................ 5  
Electrical Connections.......................................................................................................................... 5  
Plumbing Connections ......................................................................................................................... 6  
Detergent .............................................................................................................................................. 6  
Rinse-Aid ............................................................................................................................................. 6  
Chemical Sanitizer ............................................................................................................................... 6  
Completing Installation........................................................................................................................ 7  
OPERATION .............................................................................................................................................. 8  
Operation Summary ............................................................................................................................. 8  
Operation Procedures ........................................................................................................................... 8  
MAINTENANCE........................................................................................................................................ 10  
Cleaning Schedule................................................................................................................................ 10  
Deliming............................................................................................................................................... 11  
Deliming Process.................................................................................................................................. 11  
Maintenance Schedule.......................................................................................................................... 12  
TROUBLESHOOTING .............................................................................................................................. 13  
REPLACEMENT PARTS........................................................................................................................... 15  
ELECTRICAL DIAGRAMS ...................................................................................................................... 39  
TIMER CHARTS AND DIAGRAMS........................................................................................................ 44  
LIST OF FIGURES  
Figure 1—Track and Panel Assembly......................................................................................................... 16  
Figure 2—Door and Switch Assembly........................................................................................................ 18  
Figure 3—Tank/Drain Assembly ................................................................................................................ 20  
Figure 4—Pump Assembly ......................................................................................................................... 22  
Figure 5—Wash System Assembly............................................................................................................. 24  
Figure 6—Booster Assembly and Water Inlet Piping (HT Only)............................................................... 26  
Figure 7—Water Inlet Piping (HTN, LT Only) .......................................................................................... 28  
Figure 8—Fill System ................................................................................................................................. 30  
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CONTENTS  
Figure 9—Detergent Pump Assembly......................................................................................................... 32  
Figure 10—Sanitizer/Rinse-Aid Pump Assembly....................................................................................... 34  
Figure 11—Control Panel Assembly........................................................................................................... 36  
Figure 12—Electrical Diagram, 401-HT..................................................................................................... 40  
Figure 13—Electrical Diagram, 401-HTN.................................................................................................. 41  
Figure 14—Electrical Diagram, 401-LT ..................................................................................................... 42  
Figure 15—Electrical Diagram, 401-HT (50 Hz) ....................................................................................... 43  
Figure 16—Timer Chart and Diagram, 401-HT, HTN ............................................................................... 44  
Figure 17—Timer Chart and Diagram, 401-LT.......................................................................................... 45  
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INTRODUCTION  
INTRODUCTION  
Welcome to Moyer Diebel.  
Thank you for choosing Moyer Diebel and for allowing us to take care of your dishwashing  
needs.  
This manual covers several models. Model numbers are shown on the front cover.  
Your machine has been completely assembled, inspected, and thoroughly tested at our factory to  
eliminate problems at installation before it was shipped to your installation site. This manual  
provides:  
Warranty information  
Installation and operation procedures  
Maintenance instructions  
Troubleshooting guide  
Replacement parts lists.  
Complete and return your warranty registration card as soon as possible.  
Moyer Diebel constantly improves its products; therefore, specifications contained in this  
manual may have changed.  
For your protection, factory authorized parts should always be used.  
Replacement parts may be ordered from your Moyer Diebel authorized parts distributor or  
service agency. When ordering parts, supply the model number, serial number, voltage and phase  
of your machine, the part number, part description, and quantity.  
1
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WARRANTY  
LIMITED WARRANTY  
Champion Industries/Moyer Diebel Limited, P.O. Box 4183, Winston-Salem, North Carolina 27115, and P. O. Box 301, 2674  
North Service Road, Jordan Station, Ontario, Canada L0R 1S0 warrants machines, and parts, as set out below.  
Warranty of Machines: Champion Industries/Moyer Diebel Limited warrants all new machines of its manufacture bearing  
the name “Champion” or "Moyer Diebel" and installed within the United States and Canada to be free from defects in  
material and workmanship for a period of one (1) year after the date of installation or fifteen (15) months after the date of  
shipment by Champion/Moyer Diebel, whichever occurs first. [See below for special provisions relating to Model Series DF  
and SW.] The warranty registration card must be returned to Champion/Moyer Diebel within ten (10) days after installation.  
If warranty card is not returned to Champion/Moyer Diebel within such period, the warranty will expire after one year from  
the date of shipment.  
Champion/Moyer Diebel will not assume any responsibility for extra costs for installation in any area where there are  
jurisdictional problems with local trades or unions.  
If a defect in workmanship or material is found to exist within the warranty period, Champion/Moyer Diebel, at its election,  
will either repair or replace the defective machine or accept return of the machine for full credit; provided, however, as to  
Model Series DF and SW, Champion/Moyer Diebel's obligation with respect to labor associated with any repairs shall end  
(a) 120 days after shipment, or (b) 90 days after installation, whichever occurs first. In the event that Champion/Moyer  
Diebel elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular  
working hours by a Champion/Moyer Diebel authorized service technician. Defective parts become the property of  
Champion/Moyer Diebel. Use of replacement parts not authorized by Champion/Moyer Diebel will relieve Champion/  
Moyer Diebel of all further liability in connection with its warranty. In no event will Champion/Moyer Diebel's warranty  
obligation exceed Champion/Moyer Diebel's charge for the machine. The following are not covered by Champion/Moyer  
Diebel's warranty:  
a. Lighting of gas pilots or burners.  
b. Cleaning of gas lines.  
c. Replacement of fuses or resetting of overload breakers.  
d. Adjustment of thermostats.  
e. Adjustment of clutches.  
f. Opening or closing of utility supply valves or switching of electrical supply current.  
g. Adjustments to chemical dispensing equipment.  
h. Cleaning of valves, strainers, screens, nozzles, or spray pipes.  
i. Performance of regular maintenance and cleaning as outlined in operator’s guide.  
j. Damages resulting from water conditions, accidents, alterations, improper use, abuse,  
tampering, improper installation, or failure to follow maintenance and operation procedures.  
Examples of the defects not covered by warranty include, but are not limited to: (1) Damage to the exterior or interior finish  
as a result of the above, (2) Use with utility service other than that designated on the rating plate, (3) Improper connection to  
utility service, (4) Inadequate or excessive water pressure, (5) Corrosion from chemicals dispensed in excess of recom-  
mended concentrations, (6) Failure of electrical components due to connection of chemical dispensing equipment installed  
by others, (7) Leaks or damage resulting from such leaks caused by the installer, including those at machine table connec-  
tions or by connection of chemical dispensing equipment installed by others, (8) Failure to comply with local building  
codes, (9) Damage caused by labor dispute.  
Warranty of Parts: Champion/Moyer Diebel warrants all new machine parts produced or authorized by Champion/Moyer  
Diebel to be free from defects in material and workmanship for a period of 90 days from date of invoice. If any defect in  
material and workmanship is found to exist within the warranty period Champion/Moyer Diebel will replace the defective  
part without charge.  
DISCLAIMER OF WARRANTIES AND LIMITATIONS OF LIABILITY. CHAMPION/MOYER DIEBEL'S  
WARRANTY IS ONLY TO THE EXTENT REFLECTED ABOVE. CHAMPION/MOYER DIEBEL MAKES NO  
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF  
MERCHANTABILITY, OR FITNESS OF PURPOSE. CHAMPION/MOYER DIEBEL SHALL NOT BE LIABLE  
FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE REMEDIES SET OUT ABOVE ARE THE EXCLU-  
SIVE REMEDIES FOR ANY DEFECTS FOUND TO EXIST IN CHAMPION/MOYER DIEBEL DISHWASHING  
MACHINES AND CHAMPION/MOYER DIEBEL PARTS, AND ALL OTHER REMEDIES ARE EXCLUDED,  
INCLUDING ANY LIABILITY FOR INCIDENTALS OR CONSEQUENTIAL DAMAGES.  
Champion/Moyer Diebel does not authorize any other person, including persons who deal in Champion/Moyer Diebel  
dishwashing machines, to change this warranty or create any other obligation in connection with Champion/Moyer Diebel  
Dishwashing Machines.  
rev. 8699  
2
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GENERAL  
GENERAL  
This manual covers the Moyer Diebel 401 undercounter dishwashing machine. This machine  
is fully automatic and is equipped with a 1/2 H.P. pump motor. All models are available for  
mounting directly to the floor or on optional stands (see accessories listed on page 4).  
Standard equipment includes:  
-Automatic tank fill  
-Wash/rinse arm  
-Common utility connections  
-120 Volt control circuit  
-Two dish racks (peg and flat)  
-Exclusive vent design for  
venting of condensation  
-Convenient, easy to use controls  
-Door latch activated start switch  
-Pumped drain (to 3 ft/1m) (vertical)  
-Stainless steel heavy-gauge construction  
This series of dishwashers is available in the following models:  
Model Numbers  
401-HT, 401-HTN, 401-LT  
The 401-HT model is a high temperature (82°C/180°F rinse) sanitizing model with booster.  
The 401-HTN model is a high temperature (82°C/180°F rinse) sanitizing model without  
booster.  
The 401-LT model is a low temperature (60°C/140°F rinse) sanitizing model for use with  
5.25% or 8.4% sodium hypochlorite solution (chlorine bleach) as a sanitizing agent. The  
rinse aid pump is optional.  
Options  
Kit 512 - Detergent pump (P/N 0709624)  
Kit 504 - Top and side panels (P/N 0708756)  
Kit 505 - Top panel only (P/N 0708744)  
Kit 506 - Left side panel only (P/N 0708745)  
Kit 507 - Right side panel only (P/N 0708746)  
Kit 508 - Rinse aid pump kit (P/N 0708754)  
Kit 510 - Extended reach pumped drain kit (P/N 0708766)  
Kit 511 - 30°C/70°F temperature rise booster (P/N 0708753)  
(for 49°C/110°F supply water).  
3
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GENERAL  
Accessories  
17RS - 17" rack stand (raises working height and adds rack storage)  
17T - 17" cabinet (raises working height and adds storage)  
CST - Combination sink/table (scraping and sorting station)  
101285 - Dish Rack (Peg Rack)  
101273 - Silverware Rack (Flat Bottom Rack)  
Electrical Power Requirements  
Booster  
Rise  
Machine  
Power Requirement  
Model  
401-LT  
401-HTN  
401-HT  
401-HT  
401-HT  
401-HT  
Voltage  
Full Load Amp (125% Service Factor)  
115/60/1  
115/60/1  
208/60/1  
240/60/1  
208/60/1  
240/60/1  
N/A  
N/A  
40  
9
15  
15  
42  
47  
57  
64  
9
33  
37  
45  
51  
40  
70  
70  
NOTE:  
208-230V/60Hz/1PH electrical supply service must be a 3-wire plus ground for connection  
as shown.  
00036  
—3-Wire Plus Ground Diagram  
115v  
115v  
208-230  
L1  
L2  
N
G
4
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INSTALLATION  
INSTALLATION  
Unpacking  
WARNING:  
!
Care should be taken when lifting the machine to prevent damage.  
1. Immediately after unpacking your machine, inspect for any shipping damage. If damage is  
found, save the packing material and contact the carrier immediately.  
2. Remove the dishwasher from the skid. Adjust the feet if required, then move the machine to  
its permanent location.  
3. Level the machine (if required) by placing a level on the top of the machine and adjusting  
the feet. Level the machine front-to-back and side-to-side.  
CAUTION:  
!
After locating your machine, the installation must meet local health codes. An example may  
be to seal your machine to the floor using a good grade of silicone sealant.  
Electrical Connections  
WARNING:  
!
Electrical and grounding connections must comply with the National Electrical Code  
and/or Local Electrical Codes.  
WARNING:  
!
When working on the dishwasher, disconnect the electric service and tag it to indicate work  
is being done on that circuit.  
1. The electrician should compare the electrical specifications on the machine electrical rating  
label (located on the lower left front panel) to the electrical power supply before connecting  
the machine to the incoming service at a fused disconnect switch.  
NOTE:  
The 208-240V/60Hz/1PH electrical supply service for this machine must be a  
3-wire plus ground service.  
2. On the 208V-240V models, a terminal block is provided on the left front side of the  
machine (located behind the front panel) for electrical service connections. A fused  
disconnect switch or circuit breaker (supplied by user) is required to protect each power  
supply circuit.  
3. On 115V models, your machine is already equipped with a 4-foot power cord and plug  
suitable for 115V-15A service.  
5
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INSTALLATION  
Plumbing Connections  
CAUTION:  
!
Plumbing connections must comply with local sanitary and plumbing codes.  
Water Connections  
1. Connect the hot water supply (60°C/ 140°F Min) to the 1/2" I.D. fill hose provided. The fill  
solenoid valve is equipped with a flow control that will accept water pressures from 172  
kPa/25 psi to 665 kPa/95 psi.  
2. Install a manual shut-off valve with 3/4" garden hose connection in the water supply line  
close to the machine to accommodate installation and servicing the machine. The shut-off  
valve should be the same size or larger than the supply line.  
3. The fill solenoid valve is equipped with a built-in strainer to protect from particles in the  
water supply.  
Drain Connections  
1. All Models are supplied with a flexible 5/8" I.D. drain hose, which must be connected to a  
1-1/2" drain using a wye (Y) fitting close to the machine.  
Detergent/Chemicals  
Use a qualified detergent/chemical supplier for your detergent, rinse aid, and chemical  
sanitizer needs.  
1. Your machine may be fitted with an optional liquid detergent dispensing pump. Insert the  
labeled detergent pickup tube into the detergent container. The pickup tube has a strainer on  
the end to prevent crystallized chemical from clogging the supply lines.  
2. The cycle timer located in the main control cabinet is equipped with adjustable cams for the  
chemical dispensing pump(s). The cams control the length of time that the pumps operate.  
A qualified person may adjust the cam settings if necessary. Refer to the timer chart  
diagram(s) at the end of the manual for timer cam locations. Factory time settings are only  
approximate. Have your chemical supplier check the concentration and make the necessary  
adjustments.  
NOTE:  
A nonchlorinated detergent is recommended for your dishwasher.  
Rinse Aid  
1. An optional rinse aid pump may be added for all models. Insert the labeled Rinse Aid  
pickup tube into the rinse aid container. Contact your chemical supplier for adjustment to  
ensure proper dosage.  
Chemical Sanitizer  
1. Model 401-LT is supplied with chemical sanitizer dispensing pump. Using a 5.25% or 8.4%  
sodium hypochlorite solution, insert the labeled Chemical Sanitizer pickup tube into the  
chemical sanitizer container. Have your chemical supplier set chemical dosage according to  
local code.  
2. Contact your chemical supplier for adjustment of the chemical sanitizer to ensure proper  
dosage.  
6
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INSTALLATION  
Completing Installation  
1. Remove any foreign material from inside the machine.  
2. Center the scrap screen over the sump opening.  
3. Prime the booster using the following procedure (if applicable).  
CAUTION:  
!
To prime the booster, the following procedure must be followed AFTER the electrical  
and plumbing connections have been made and water has been turned on.  
a. Open the dishwasher door.  
b. Make sure the On-Fill/Off-Drain switch is in the Off-Drain position.  
c. Push the Detergent/Rinse prime switch “down” to the Rinse position.  
d. Hold the prime switch in the Rinse position until you observe water entering the wash  
tank. The water inlet port is on the lower right side of the tank interior.  
e. Release the switch. You have completed the booster priming process.  
00034  
ON  
DET  
FILL  
RINSE  
OFF  
DRAIN  
IN  
CYCLE  
WARNING:  
!
Failure to prime the booster may cause damage to the booster  
elements and other electrical components and will void the  
warranty.  
4. Check the machine for water leaks by depressing the ON/FILL switch on the front panel,  
then close and latch the door. This allows the tank to automatically fill by using the rinse  
cycle. Check for leaks.  
5. Open the door and check the water level. The water level should be 1/2" over the scrap  
screen.  
6. Depress the OFF/DRAIN switch, close and latch the door to drain the machine. This allows  
the machine to complete the 105-second wash and drain cycle. Check the drain plumbing  
for leaks or kinks in drain hose.  
7. Replace the front panel. Installation is now complete.  
7
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OPERATION  
OPERATION  
Operation Summary (See Timer Chart in back of manual)  
The following is a summary of your Undercounter Dishwashing Machine operating cycle:  
1. The cycle begins when you close and latch the door.  
2. The green cycle lamp lights and the wash pump starts.  
3. The pump runs during the wash cycle for approximately 80 seconds.  
4. The wash pump stops, and the drain valve is opened.  
5. After a 2-3 second pause, the pump drain cycle begins and continues for approximately 30  
seconds.  
6. After a 2-3 second pause, the fill valve opens, and the pump starts for the rinse cycle.  
7. Within approximately 25 seconds, the rinse cycle is complete. The pump stops, the green  
cycle lamp turns off, and the cycle is complete.  
8. Open the door and remove the rack of clean ware. The door must remain open for 5  
seconds to allow the timer to reset before starting another cycle.  
Daily Operation Procedures  
The operation of your dishwasher will be more efficient when these procedures are followed:  
1. Check that the spray arm and scrap screen are in place.  
2. Close and latch the door. Push the ON/FILL switch to the ON position. The tank will begin  
filling with water. This procedure is followed only when the tank is empty.  
3. When the tank is full, check the wash tank temperature gauge. Minimum wash temperatures  
are:  
• 401-HT, 401-HTN - 66°C/150°F.  
• 401-LT - 60°C/140°F.  
CAUTION:  
!
If the wash water temperature falls below the minimums listed  
above, you must run an empty cycle to refill with fresh hot water.  
4. Scrap and preflush all items to be washed, and load the items into the rack. DO NOT  
OVERLOAD the rack. Wash only one layer of silverware in a rack.  
5. Open the door and insert the rack into the machine.  
6. Close and latch the door. This will start the wash cycle. The green cycle lamp located on the  
front control panel will light. This lamp will remain on until the entire wash and rinse cycle  
are completed.  
8
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OPERATION  
NOTE:  
The machine may be stopped at any time by opening the door. When restarted, the cycle  
does not start over. It will continue from the point at which it was interrupted.  
7. Check the rinse temperature during the final rinse (120 seconds into cycle). The rinse  
temperature must be 82°C/180°F minimum for models 401-HT and 401-HTN and  
60°C/140°F for model 401-LT.  
8. The pump will automatically stop and the green cycle light will turn off indicating the cycle  
is completed.  
9. Open the door and remove the rack.  
10. Repeat steps 4-9 for additional cycles. Machine operation is automatic.  
11. CLEAN the scrap screen after every meal period. During heavy usage, the scrap screen  
should be cleaned more frequently.  
CAUTION:  
!
Poor machine performance and/or damage to the machine can occur if the scrap  
screen becomes clogged with soil or waste particles.  
12. To drain water out of the tank at the end of each day. Flip OFF/DRAIN switch to DRAIN  
position. Close and latch door. Machine will drain completely in approximately 105  
seconds.  
CAUTION:  
!
DO NOT LEAVE WATER IN THE TANK OVERNIGHT. Water left in the tank  
overnight will allow harmful chemicals to deteriorate the tank.  
9
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MAINTENANCE  
MAINTENANCE  
The efficiency and life of your machine is increased by regularly scheduled preventive  
maintenance. A well maintained machine gives better results and service. An investment of a few  
minutes of daily maintenance will be worthwhile.  
The best maintenance you can provide is to keep your machine clean. Components that are not  
regularly cleaned and flushed will clog and become inoperative.  
Intervals shown in the following schedules represent an average length of time between  
necessary maintenance. Maintenance intervals should be shortened whenever your machine is  
faced with abnormal working conditions, hard water, or multiple shift operations.  
Cleaning Schedule  
Daily-Every 8 Hours  
1. Depress the OFF/DRAIN switch to OFF and close and latch the door to drain the  
tank.  
2. Open the door and remove the lower spray arm by unscrewing the knurled fastener.  
3. Remove the scrap screen carefully to keep soil or waste particles from falling into the  
sump. Remove any material caught in pump intake.  
4. Clean inside the tank with clean water. Backflush the scrap screen until it is clean. Do  
not strike the screen against solid objects.  
5. Clean the wash arm to remove any debris from spray openings. Do not strike the spray  
arm against solid objects.  
6. Reinstall the scrap screen and spray arm.  
7. Leave the door open overnight to allow drying.  
8. Report any unusual conditions to your supervisor.  
Meal Periods  
1. Clean the scrap screen after every meal period and more frequently during heavy  
usage. Do not allow the scrap screen to become clogged with soil or waste particles.  
10  
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MAINTENANCE  
Deliming  
Your dishwasher should be delimed regularly as required. This will depend on the mineral  
content of your water.  
Inspect your machine interior for lime deposits. If deliming is required, a deliming agent should  
be used for best results.  
If you have the chemical sanitizing model (401-LT), carefully follow the following procedure  
before deliming:  
DANGER:  
!
Deliming solution or other acids must not come in contact with household bleach (sodium  
hypochlorite) or any chemicals containing chlorine, iodine, bromine, or fluorine. Mixing  
will cause hazardous gases to form. Skin contact with deliming solutions can cause severe  
irritation and possible chemical burns. Consult your chemical supplier for specific safety  
precautions.  
1. Remove the sanitizer tube from the container. Place the tube into a container of hot water.  
2. Depress and hold the SANITIZER prime switch (located on the front panel) until all  
sanitizer has been purged from the hoses.  
3. Close the door and depress the door latch. Complete two operating cycles to purge the  
machine of all sanitizer.  
Deliming Procedure  
Complete the following procedure to delime your machine:  
1. Add the delime chemical to wash the tank (per chemical supplier specifications).  
2. Close and latch the door.  
3. The dishwasher will complete a regular cycle.  
4. Check the deliming results and repeat if necessary per the chemical supplier’s  
specifications.  
5. Operate the dishwasher for at least four complete cycles to purge the machine of any  
deliming chemicals.  
6. For chemical sanitizing Model 401-LT, re-prime sanitizer chemical line and run an  
additional cycle to flush any excess sanitizer from machine.  
7. Drain the dishwasher. Deliming is complete.  
11  
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MAINTENANCE  
Maintenance Schedule  
As Required  
1. Check the temperature gauge reading.  
2. Check the chemical supplies and refill as necessary.  
Weekly  
1. Inspect all water lines for leaks and tighten them at joints if required.  
2. Clean all detergent residue from the exterior of the machine.  
3. Check the drain for leaks.  
4. Remove and closely inspect the spray arm for blockage.  
5. Check for damage to the scrap screen. Ineffective screening can cause wash system  
failures, or poor washing results.  
6. Clean the detergent, sanitizer, and rinse aid supply tubes (if equipped). Complete the  
following procedure:  
a. Remove the detergent, sanitizer, and rinse aid pick-up tube(s) from the  
container(s). Place the tube(s) into a container of hot water.  
b. Ensure ON/OFF switch is in the ON position depress and hold the DET prime  
switch (located on the front panel) until clear water enters the tank through the  
fill air gap (located on the right side of the tank).  
c. If your machine is equipped with a sanitizer and/or rinse aid pump, follow the  
same procedure by pressing the SANITIZER and/or the RINSE AID prime  
switch until clear water enters the tank through the fill air gap.  
d. When completed, remove the pickup tubes from the hot water and reinsert them  
into the correct chemical containers. Repeat the priming procedures to ensure  
that chemicals have filled the tubes for the next operating period.  
e. Run a complete cycle to flush chemicals from the tank.  
12  
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TROUBLESHOOTING  
TROUBLESHOOTING  
Before determining any specific cause of a breakdown or abnormal operation of your dishwasher,  
check that:  
1. Power supply is turned on. All switches are ON.  
2. Wash arm is clean.  
3. Scrap screen is properly positioned and clean.  
4. Thermostat is at the correct setting.  
5. Sanitizer, detergent, and rinse additive dispensers (if equipped) are adequately filled.  
6. All plumbing valves are open and drain hose is not kinked.  
If a problem still exists, use the following table for troubleshooting.  
CONDITION  
CAUSE  
SOLUTION  
Machine will not start  
Door not closed and latched. . . . . . . .  
Main switch off, or unit unplugged . .  
Make sure door is fully latched  
Check disconnect or plug into outlet  
Low or no water  
Main water supply is turned off . . . .  
Water level setting low. . . . . . . . . . . .  
Turn on house water supply  
Adjust water level  
Chemical not feeding  
No chemical in container . . . . . . . . . .  
Feed tubes to/from chemical . . . . . . .  
pump clogged  
Replace or fill container  
Clear obstruction and flush  
with hot water  
Screen on feed tube clogged. . . . . . . .  
Tubing kinked or split . . . . . . . . . . . .  
Clean and replace  
Straighten or replace tubing  
Water temperature  
is low when in use  
Incoming water temperature. . . . . . . .  
at machine too low  
Raise house supply temperature to  
60°C/140°F for all machines  
Insufficient pumped spray  
pressure  
Clogged spray arm . . . . . . . . . . . . . . .  
Scrap screen full. . . . . . . . . . . . . . . . .  
Clean  
Must be kept clean and in place  
Low final rinse temperature  
Low incoming water. . . . . . . . . . . . . .  
temperature  
Check the booster - be sure the  
thermostat is set to maintain 66°C/180°F  
temperature (401-LT is 60°C/140°F)  
(Check all valves to be  
sure they are clean and operating)  
Poor washing results  
Detergent dispenser not . . . . . . . . . . .  
operating properly  
Contact service agent  
Insufficient detergents . . . . . . . . . . . .  
Check dosage  
Check and fill  
Contact detergent supplier  
Contact detergent supplier  
See above booster temperatures, run cycle  
Clean wash arm  
Check scraping procedures  
Use proper racks - do not overload  
racks  
Detergent setting too low . . . . . . . . .  
Wash water temperature too low . . . .  
Wash arm clogged . . . . . . . . . . . . . . .  
Improperly scraped dishes . . . . . . . . .  
Ware being improperly. . . . . . . . . . . .  
placed in rack  
Improperly cleaned . . . . . . . . . . . . . .  
equipment  
Unclog wash arm to maintain  
proper pressure and flow conditions  
No water in wash well  
Opening door prior. . . . . . . . . . . . . . .  
to cycle completion  
Close and latch door. Wait for green light  
to go out before opening door.  
Water supply is turned off . . . . . . . . .  
Turn on supply  
No water in wash tank  
after activating the  
ON/FILL switch  
Door not latched. . . . . . . . . . . . . . . . .  
Latch door  
Wait for wash tank to fill  
13  
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THIS PAGE  
INTENTIONALLY  
LEFT BLANK  
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REPLACEMENT PARTS  
REPLACEMENT  
PARTS  
15  
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REPLACEMENT PARTS  
00050  
12  
11  
10  
12  
7
6
4
9
5
3
12  
2
8
1
Figure 1 — Track and Panel Assembly  
16  
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REPLACEMENT PARTS  
TRACK AND PANEL ASSEMBLY  
Description  
Fig. 1  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
0508751  
Screw, 10-32 x 1-1/2" Lg. Truss Head.......................................  
Front Panel .................................................................................  
Screw, 10-32 x 3/8" Lg. Round Head.........................................  
Screw, 10-32 x 5/8" Lg. Round Head.........................................  
Track, RH ...................................................................................  
Track, LH ...................................................................................  
Cover, Vent.................................................................................  
Panel, LH Side ...........................................................................  
Panel, Rear ................................................................................  
Panel, RH Side ..........................................................................  
Panel, Top ..................................................................................  
Screw, 10-32 x 3/8" Lg. Truss Head ..........................................  
2
1
2
4
1
1
2
1
1
0309572  
0501413  
0501415  
0308632  
0308631  
0708647  
0308736  
0308734  
0308737  
0308735  
0501412  
10  
11  
12  
1
1
10  
17  
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REPLACEMENT PARTS  
00020  
11  
1
5
4
8
7
6
10  
9
12  
3
1
14  
13  
2
1
15  
18  
16  
17  
15  
Figure 2 — Door and Switch Assembly  
18  
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REPLACEMENT PARTS  
DOOR AND SWITCH ASSEMBLY  
Description  
Fig. 2  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
-
0501412  
Screw, 10-32 x 3/8" Truss Head.................................................  
Plate, Door Latch........................................................................  
Handle, Door Latch....................................................................  
Retaining Ring, Plunger.............................................................  
Assembly, Door Catch (Includes items 4, 6)..............................  
Plunger, Door Catch...................................................................  
Gasket, Steam.............................................................................  
Screw, Round Head (6-32 x 3/8") ..............................................  
Plate, Door Switch......................................................................  
Switch, Door Magnetic Reed .....................................................  
Gasket, Upper Door....................................................................  
Gasket, Side Door ......................................................................  
Nut, Plain 1/4-20 ........................................................................  
Spring, Door Hinge ....................................................................  
Bolt, 1/4-20 x 1-1/4" Hex Head .................................................  
Arm, Door Hinge........................................................................  
Washer, Lock 1/4" Split .............................................................  
Door............................................................................................  
Wiring, Harness, Door Switch ...................................................  
6
1
1
1
1
1
2
2
1
1
1
2
2
2
4
2
2
1
1
0308596  
0308597  
0508721  
0709462  
0509436  
0508545  
104883  
0709431  
111090  
0508544  
0508543  
0501539  
0503715  
0501421  
0708564  
0501501  
0708527  
0508555  
-
0708526  
Door Assy. (includes items 1-6, 18)  
19  
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REPLACEMENT PARTS  
00037  
1
2
3
4
5
THERMOMETER  
(CALLED OUT IN  
CONTROL BOX)  
6
7
TO PUMP  
10  
11  
11  
12  
8
TO DRAIN  
9
Figure 3 — Tank/Drain Assembly  
20  
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REPLACEMENT PARTS  
TANK/DRAIN ASSEMBLY  
Description  
Fig. 3  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
0508628  
201029  
Scrap Screen...............................................................................  
Locknut, 1/2 NPT Nickel-Plated................................................  
O-Ring, Thermometer................................................................  
Adapter, Thermometer ...............................................................  
Nut, Plain 1/4-20 ........................................................................  
Washer, Lock, 1/4" Split.............................................................  
Support, Drain Valve..................................................................  
Valve, Drain................................................................................  
Screw, 1/4-20 x 1/2" Lg. Round Head .......................................  
Hose, 5/8" ID x 7/8" OD PVC Braided (3 ft.) ..............................  
Clamp, hose................................................................................  
Hose 5/8" ID x 1" OD Braided PVC..........................................  
1
1
2
1
2
2
1
1
2
2
2
1
0501836  
0508872  
0501539  
0501501  
0308611  
0306618  
0501418  
0507265  
0510082  
0509302  
10  
11  
12  
21  
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REPLACEMENT PARTS  
00005  
1
3
2
4
7
5
6
8
9
10  
13  
14  
11  
12  
TANK  
BOTTOM  
Figure 4 — Pump Assembly  
22  
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REPLACEMENT PARTS  
PUMP ASSEMBLY  
Description  
Fig. 4  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
*-  
*-  
-
0508542  
Spindle, Lower Wash Arm.........................................................  
Screw, 8-32 x 1-1/8" Round Head..............................................  
Screw, 8-32 x 5/8" Round Head.................................................  
Housing, Top (No Hole).............................................................  
Diffuser.......................................................................................  
Impeller ......................................................................................  
Adapter Plate, Suction................................................................  
Plate, Drain lnlet.........................................................................  
O-ring .........................................................................................  
Propeller/Rotating Seal Assembly .............................................  
Mounting Plate/Seal Assembly (Includes Item 10)....................  
Gasket, Pump .............................................................................  
Screw, 10-32 x 5/8" Hex Washer Head......................................  
Washer, Sealing Teflon...............................................................  
Pump/Motor Assembly (50/60 Hz, 220V) (Export machines) ..  
Pump/Motor Assembly (50/60 Hz (115V).................................  
Nut, Grip 10-32, SST (Not Shown) (For mounting Item 1).......  
1
4
4
1
1
1
1
1
1
1
1
1
8
8
1
1
1
0501431  
0501425  
0502742  
0502741  
0502704  
0502746  
0502745  
0502703  
0502744  
0502743  
0501881  
0508665  
0508570  
0508973  
0710072  
107966  
* Motor not available as a separate repair part  
23  
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REPLACEMENT PARTS  
00038  
1
2
3
4
PUMP  
TANK BOTTOM  
Figure 5 — Wash System Assembly  
24  
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REPLACEMENT PARTS  
WASH SYSTEM ASSEMBLY  
Description  
Fig. 5  
Part  
Qty  
Item No. No.  
1
2
3
4
0501563  
Screw, #8 x 3/8" (Sheet Metal) Truss Head ...............................  
Nut, Spray Arm Lock.................................................................  
Wash Arm, Lower ......................................................................  
Bushing, Lower Wash Arm........................................................  
4
1
1
1
0501684  
0705049  
0508540  
25  
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REPLACEMENT PARTS  
Figure 6 — Booster Assembly and Water Inlet Piping  
(HT Only)  
26  
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REPLACEMENT PARTS  
BOOSTER ASSEMBLY AND WATER INLET PIPING  
(HT ONLY)  
Fig. 6  
Part  
Description  
Qty.  
Item No. No.  
1
2
3
4
5
6
7
8
9
0509214  
Hose, 1/2" I.D.............................................................................  
Clamp, hose................................................................................  
Elbow, 3/8 MPT X1/2 Hose x 90°..............................................  
Bushing, reducing 3/4 NPT x 3/8 NPT Brass ............................  
Nut, grip 6-32 w/nylon insert.....................................................  
Thermostat, high limit................................................................  
Tank, booster (tank only) ...........................................................  
Bolt (1/4-20 x 1/2" Hex Hd).......................................................  
Washer, lock 1/4 split .................................................................  
Hose 1/2” x 7’ ............................................................................  
Coupler, 3/8 MPT x 1/2..............................................................  
Valve, solenoid (3/8 NPT)..........................................................  
Repair kit, 3/8" valve..................................................................  
Coil, 115V 3/8" valve.................................................................  
Flow washer, 3/8" valve.............................................................  
Elbow, reducing 1/2 MPT x 3/8 MPT 90° .................................  
Plug, pipe 1/8"............................................................................  
O ring, gasket .............................................................................  
Heater element, 9KW (70° rise) 208/230V 1PH  
3 ft.  
2
1
1
2
1
1
2
2
1
1
1
1
1
1
1
1
0503679  
0502653  
0508840  
108954  
110562  
0509607  
0501419  
0501501  
0509526  
0502618  
0504952  
0502811  
0505235  
0504958  
0509606  
0508817  
109985  
10  
11  
12  
13  
14  
15  
16  
17  
18  
*19  
1
111233  
(existing 70° rise) .......................................................................  
Conversion Kit 410° to 70° Rise................................................  
Heater element, 6KW (40° rise) 208/230V 1PH........................  
Nut, plain 1/4-20 ........................................................................  
Cover, heater element.................................................................  
Foot, adjustable ..........................................................................  
Bushing, reducing face 3/4" to 1/2" Brass (not shown) .............  
1
AR  
1
6
1
*19  
20  
21  
22  
23  
24  
0708753  
111235  
0501539  
107908  
0503718  
100171  
4
1
* When converting machine contact factory with serial number. Kit is supplied with new data  
plate for machine. Factory will supply jumper settings for element at time of installation.  
27  
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REPLACEMENT PARTS  
Figure 7 — Water Inlet Piping  
(HTN, LT Only)  
28  
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REPLACEMENT PARTS  
WATER INLET PIPING  
(HTN, LT ONLY)  
Description  
Fig. 7  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
0503718  
Foot, adjustable ..........................................................................  
Clamp, hose................................................................................  
Hose, 1/2" I.D. clear braided (LT Only).....................................  
Hose, 1/2" I.D. white (HTN Only).............................................  
Elbow, 3/8 MPT x 1/2" Hose x 90° Brass..................................  
Valve, solenoid (3/8NPT)...........................................................  
Repair kit, 3/8" valve..................................................................  
Coil, 115V 3/8" valve.................................................................  
Flow washer, 3/8" valve.............................................................  
Washer, lock 1/4" split................................................................  
Bolt, 1/4-20 x1/2" Hex Hd .........................................................  
Clamp, valve support..................................................................  
Coupling, 3/8 MPT x 3/4" hose barb .........................................  
Washer, hose...............................................................................  
Hose, coupled.............................................................................  
4
3
3 ft.  
3 ft.  
1
1
1
1
1
2
2
1
1
2
1
0503679  
0502665  
0509214  
0502653  
0504952  
0502811  
0505235  
0504958  
0501501  
0501419  
0300203  
0502618  
0505320  
0509526  
29  
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REPLACEMENT PARTS  
00039  
Figure 8 — Fill System  
30  
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REPLACEMENT PARTS  
FILL SYSTEM  
Description  
Fig. 8  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
0502665  
0501518  
106090  
Hose, 1/2" I.D. Clear Braided (HTN, LT)..................................  
Tie Wrap, Hose...........................................................................  
Bracket, Tie Wrap.......................................................................  
Nut, Grip, 10-32 w/Nylon Insert ................................................  
Gasket, Inlet Chute.....................................................................  
Inlet Chute..................................................................................  
Tie Wrap, Chemical Hose ..........................................................  
Hose, Fill 1/2" I.D. (White)........................................................  
A/R  
2
2
8
1
1
3
3 ft.  
107966  
0509048  
0508867  
0501519  
0509214  
31  
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REPLACEMENT PARTS  
00022  
1
3
2
4
6
7
8
5
12  
13  
9
14  
15  
10  
11  
TO FILL  
ASSY  
16  
16  
22  
17  
18  
22  
19  
20  
21  
TO DETERGENT  
SUPPLY  
Figure 9 — Detergent Pump Assembly (optional)  
32  
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REPLACEMENT PARTS  
DETERGENT PUMP ASSEMBLY (OPTIONAL)  
Description  
Fig. 9  
Part  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
0503757  
Motor, Pump...............................................................................  
Bracket, Detergent Pump (except LT)........................................  
Bracket, Detergent/Sanitizer Pumps (LT) ..................................  
Screw, M4 x 35mm Hex Head ...................................................  
Screw, 10-32 x 3/8" Lg. Truss Head ..........................................  
Housing, Pump...........................................................................  
Washer, Lock #8 Split ................................................................  
Screw,8-32 x 1/2" Lg. Pan Head ................................................  
Screw, 8-32 x 5/8" Round Head.................................................  
Screw, Set M6 x 8mm ................................................................  
Rotor Assembly..........................................................................  
Hose, Pump ................................................................................  
Cover, Pump Housing ................................................................  
Washer, Flat M4 .........................................................................  
Nut, Wing M4.............................................................................  
Tie Wrap, Hose...........................................................................  
Hose, Detergent, 1/4" I.D. PVC (Clear).....................................  
Elbow, 1/4" O.D. x 90° Barbed..................................................  
Label, Detergent.........................................................................  
Tube, Pick-Up ............................................................................  
Strainer, Pick-Up Tube...............................................................  
Tie Wrap, Hose...........................................................................  
1
1
1
4
2
1
2
2
2
1
1
1
1
4
4
2
A/R  
2
0308637  
0308610  
N/A  
0501412  
N/A  
0501497  
0504822  
0501425  
N/A  
N/A  
108194  
N/A  
N/A  
N/A  
0501519  
0502667  
0502644  
0503695  
0306363  
0501869  
0501519  
1
1
1
2
-
-
109829  
0708559  
Pump Head Assy. (includes items 4, 6, 10-15)  
Pump/Motor Assy. (includes items 1, 2, 4, 6-16, 18)  
33  
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REPLACEMENT PARTS  
00002  
1
3
2
5
6
7
8
4
15  
9
10  
TO FILL  
SYSTEM  
DETERGENT  
PUMP (SEE FIG. 9)  
10  
11  
12  
13  
14  
TO CHEMICAL SUPPLY  
Figure 10 — Sanitizer/(Optional) Rinse-Aid Pump Assembly  
34  
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REPLACEMENT PARTS  
SANITIZER/(OPTIONAL) RINSE-AID PUMP ASSEMBLY  
LT  
Fig. 10  
Part  
Description  
Qty  
Item No. No.  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
0503756  
Motor, Pump...............................................................................  
Bracket, Detergent/Rinse Pump (Optional)................................  
Bracket, Sanitizer Pump.............................................................  
Screw, 10-32 x 3/8" Lg. Truss Head ..........................................  
Washer, Lock #8 Split ................................................................  
Screw, 8-32 x 1/2" Lg. Pan Head ...............................................  
Rotor Assy..................................................................................  
Element Tube Assy (45cc/min)..................................................  
Screw, 6-32 x 7/8" Lg. Pan Head ...............................................  
Hose, 1/8" I.D. PVC (Clear).......................................................  
Label, Sanitizer...........................................................................  
Label, Rinse-Aid (Optional).......................................................  
Tube, Pick-Up ............................................................................  
Strainer, Pick-up Tube................................................................  
Tie Wrap, Hose...........................................................................  
1
1
1
2
4
4
1
1
2
A/R  
1
1
1
1
0308610  
0308697  
0501412  
0501497  
0504822  
0707142  
0706635  
0506589  
0502666  
0503694  
0505483  
0306363  
0501869  
0501519  
2
-
-
0708561  
0708754  
Detergent Pump Assy. (HT & LT) (Optional)............................  
(lncludes Detergent Pump and Items 2, 5-9)  
1
Rinse-Aid Pump Assy. (Optional)  
(Includes Items 1,3, 5-10, 12-15)  
35  
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REPLACEMENT PARTS  
S
L
U P  
Figure 11 — Control Panel Assembly  
36  
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REPLACEMENT PARTS  
CONTROL PANEL ASSEMBLY  
Description  
Fig. 11  
Part  
Qty.  
Item No. No.  
*1  
*1  
2
3
4
5
6
7
-
0708538  
Timer assy (HT, HTN) (Includes items 2-5) ..............................  
Timer assy (LT only) (Includes items 2-5).................................  
Motor, timer................................................................................  
Switch, timer ..............................................................................  
Bracket, timer support................................................................  
Bearing, timer.............................................................................  
Contactor, 2 pole 50A, 240V (401 HT only) (Booster) .............  
Relay, motor start (220V, 50Hz) ................................................  
Relay, motor start (220V, 60Hz) ................................................  
1
1
1
A/R  
1
1
0708590  
0504956  
0501379  
0308644  
0503701  
111703  
0508974  
0509642  
0501358  
0509428  
0501403  
0501493  
0501472  
0501533  
0503749  
0310330  
109069  
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
4
1
1
1
1
-
8
9
Relay, motor start (115V  
, 50/60Hz)  
............................................  
Relay, door safety switch (15A, 120VAC coil)..........................  
Screw (10-32 x 3/4 Rd Hd) ........................................................  
Washer, lock (#10 ext. tooth) .....................................................  
Washer, flat (#10 Brass) .............................................................  
Nut, plain (10-32 Brass).............................................................  
Board, terminal...........................................................................  
Bracket, thermostat (401 HT only) ............................................  
Thermostat, booster (401 HT only)............................................  
Thermometer, 4 ft. Gas Filled (Replaces 108391) .....................  
Lamp, green................................................................................  
Switch, rocker (DPDT) ..............................................................  
Switch, rocker (Spring return)....................................................  
Label, switch, overlay ................................................................  
French label, switch overlay.......................................................  
Screw (10-32 x 3/8" Truss Hd)...................................................  
Panel (sheet metal only) ............................................................  
Block, terminal (3pole) (220V/50Hz)........................................  
Transformer (Not Shown) (220V/50Hz)....................................  
Block, fuse 600V, 30A (Not Shown) (220V/50Hz)....................  
Fuse, 2.5 Amp, 250VAC (Not Shown) (220V/50Hz).................  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
20  
21  
22  
23  
-
113622  
0508551  
0501361  
0501369  
0509568  
0509626  
0501412  
0309579  
0504951  
109064  
106402  
107289  
0308967  
0509645  
107369  
-
-
-
-
2
1
1
1
Box, transformer (220V/50Hz)  
...............................................  
Harness, Control Panel  
( 2 2 0 V / 5 0 H z ) ................................  
-
Contactor 25 FLA 2p 120V (Not Shown)(220V/50Hz)..............  
37  
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THIS PAGE  
INTENTIONALLY  
LEFT BLANK  
38  
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ELECTRICAL SCHEMATICS  
ELECTRICAL  
SCHEMATICS  
39  
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ELECTRICAL SCHEMATICS  
00041  
TO CUSTOMER DISCONNECT SWITCH  
CUSTOMER TO SUPPLY RATED  
115V NEUTRAL  
230V  
VOLTAGE/PHASE/Hz, AS SPECIFIED  
PER ORDER, TO DISCONNECT SWITCH.  
ALL POWER SUPPLIED TO EACH CONNECTION  
POINT MUST COMPLY WITH ALL LOCAL  
ELECTRICAL CODES.  
GND  
2
3
1
3
CTC  
2
33  
CT  
2
1
1
NC NC  
NO  
NO  
29  
31  
31  
28  
BOOSTER TANK  
WTS  
BHTR  
MSW  
30  
4
4
HLTS  
NO  
5
5
35  
NC  
NO  
33  
33  
32  
3
3
TM  
NC  
35  
8
6
NO  
NC  
1CR  
NO  
CAM 1  
CLT  
4
7
NC  
WASH  
START CW  
NO  
CAM 8  
NC  
/RINSE  
BLU  
13  
14  
15  
1
2
3
4
5
NO  
CAM 3  
NC  
SRC  
L
S
9
NO  
CAM 2  
NC  
9
12  
19  
START CCW  
8
RED  
BLK  
DRAIN  
16  
17  
PSDR  
4
M
MAIN  
TP  
25  
NO  
CAM 5  
3
3
34  
WHT  
GRN  
F V  
26  
NC  
(IF USED)  
20  
DP  
GND  
GND  
NO  
3
20  
CAM 4  
D V  
DM  
8
NC  
16  
17  
16  
8
NO  
3
3
21  
CAM 7  
NC  
17  
8
(IF USED)  
22  
NO  
3
RM  
CAM 6  
NC  
DSS  
5
5
50  
1CR  
BHTR  
BLK  
BLU  
BOOSTER HEATER  
BLACK  
BLUE  
CT  
CONTACTOR  
CONTACTOR COIL  
DETERGENT MOTOR  
DRAIN PUMP (IF USED)  
DOOR SWITCH  
DRAIN VALVE  
PSDR PRIME SWITCH DETERGENT, RINSE  
CTC  
DM  
DP  
ICR  
DDS  
RM  
RELAY  
DOOR SAFETY SWITCH  
RINSE MOTOR (IF USED)  
CAM 1 HOMING  
CAM 2 PUMP MOTOR  
CAM 3 PUMP MOTOR REVERSING DV  
DS  
SRC  
SS  
CURRENT OPERATED START RELAY COIL  
SERVICE SWITCH  
CAM 4 DRAIN  
CAM 5 FILL  
CAM 6 RINSE  
CAM 7 DETERGENT  
CAM 8 CYCLE  
EC/D  
FV  
GND  
GRN  
EXTENDED CYCLE/DELIME  
FILL VALVE  
GROUND  
TM  
TP  
WHT  
TIMER MOTOR  
THERMAL PROTECTOR  
WHITE  
GREEN  
WHTR WATER HEATER  
WTS WATER THERMOSTAT  
HTLS HIGH LIMIT THERMOSTAT  
MSW MAIN SWITCH ON/FILL OFF/DRAIN  
CLT  
CYCLE ON LIGHT  
Figure 12 — Electrical Diagram, 401-HT  
40  
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ELECTRICAL SCHEMATICS  
00044  
BLK  
BLU  
BLACK  
BLUE  
CLT  
DM  
DP  
RL  
DV  
CYCLE ON LIGHT  
DETERGENT MOTOR  
PSS  
PRIME SWITCH SANITIZER  
RELAY  
REED SWITCH  
ICR  
DSS  
RM  
SRC  
SM  
TM  
TP  
WHT  
CAM 1 HOMING  
DRAIN PUMP  
(IF USED)  
CAM 2 PUMP MOTOR  
CAM 3 PUMP MOTOR REVERSING  
CAM 4 DRAIN  
CAM 5 FILL  
CAM 6 RINSE  
CAM 7 SANITIZER  
CAM 8 DETERGENT  
CAM 9 CYCLE  
RELAY  
DRAIN VALVE  
FILL VALVE  
GROUND  
RINSE MOTOR  
(IF USED)  
CURRENT OPERATED START RELAY COIL  
SANITIZER MOTOR  
TIMER MOTOR  
THERMAL PROTECTOR  
WHITE  
FV  
GND  
GRN  
HTLS  
MSW  
GREEN  
HIGH LIMIT THERMOSTAT  
MAIN SWITCH ON/FILL OFF/DRAIN  
WHTR WATER HEATER  
WTS WATER THERMOSTAT  
PSDR PRIME SWITCH DETERGENT, RINSE  
Figure 13 — Electrical Diagram, 401-HTN  
41  
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ELECTRICAL SCHEMATICS  
00045  
TO CUSTOMER RECEPTACLE  
CUSTOMER TO SUPPLY RATED  
VOLTAGE/PHASE/Hz, AS SPECIFIED  
PER ORDER, TO DISCONNECT SWITCH.  
ALL POWER SUPPLIED TO EACH CONNECTION  
POINT MUST COMPLY WITH ALL LOCAL  
ELECTRICAL CODES.  
115V 60Hz  
BLK WHT  
GND  
1
2
1
1
2
2
8
MSW  
CLT  
NO  
6
NC  
NO  
NO  
NC  
NO  
NC  
8
8
8
4
TM  
CAM 1  
7
NO  
5
WASH  
START CW  
START CCW  
MAIN  
NC  
CAM 9  
1CR  
13  
BLU  
RED  
BLK  
/RINSE  
1
2
3
4
5
NO  
NC  
SRC  
L
S
9
9
12  
CAM 3  
NO  
CAM 2  
NC  
14  
DRAIN  
8
NC  
M
15  
NO  
19  
20  
2
2
WHT  
GRN  
CAM 5  
TP  
F V  
8
NC  
(IF USED)  
DP  
NO  
2
2
20  
D V  
CAM 4  
GND  
GND  
NC  
8
16  
NO  
NC  
21  
22  
23  
2
2
2
DM  
CAM 8  
16  
17  
8
PSDR  
4
(IF USED)  
RM  
NO  
17  
18  
CAM 6  
34  
NC  
8
PSS  
NO  
CAM 7  
SM  
NC  
8
DSS  
1
2
50  
1CR  
BLK  
BLU  
BLACK  
BLUE  
CLT  
DM  
DP  
CYCLE ON LIGHT  
DETERGENT MOTOR  
PSS  
ICR  
DSS  
RM  
PRIME SWITCH SANITIZER  
RELAY  
REED SWITCH  
CAM 1 HOMING  
CAM 2 PUMP MOTOR  
DRAIN PUMP  
RELAY  
(IF USED)  
RL  
RINSE MOTOR  
(IF USED)  
CAM 3 PUMP MOTOR REVERSING  
CAM 4 DRAIN  
CAM 5 FILL  
DV  
FV  
GND  
GRN  
HTLS  
MSW  
DRAIN VALVE  
FILL VALVE  
GROUND  
SRC  
SM  
TM  
TP  
WHT  
CURRENT OPERATED START RELAY COIL  
SANITIZER MOTOR  
TIMER MOTOR  
THERMAL PROTECTOR  
WHITE  
CAM 6 RINSE  
GREEN  
CAM 7 SANITIZER  
CAM 8 DETERGENT  
CAM 9 CYCLE  
HIGH LIMIT THERMOSTAT  
MAIN SWITCH ON/FILL OFF/DRAIN  
WHTR WATER HEATER  
WTS WATER THERMOSTAT  
PSDR PRIME SWITCH DETERGENT, RINSE  
Figure 14 — Electrical Diagram, 401-LT  
42  
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ELECTRICAL SCHEMATICS  
00048  
5
TO CUSTOMER DISCONNECT SWITCH  
230V  
1
2
5
115 VAC  
3
FUSE  
XFMR  
GND  
3
1
2
2
33  
CT  
2
1
NC NC  
NO  
NO  
1
31  
29  
28  
1
BOOSTER TANK  
BHTR  
30  
MSW  
NO  
WTS  
31  
HLTS  
4
5
35  
NC  
NO  
33  
2
33  
3
TM  
NC  
8
6
NO  
NC  
NO  
3
8
8
CLT  
Cam 1  
4
7
NC  
1CR  
Wash/  
Rinse  
Start CW  
Start CCW  
Main  
NO  
Cam 8  
NC  
BLU  
RED  
BLK  
13  
35  
NO  
1
2
3
4
5
L
S
SRC  
40  
9
12  
Cam 3  
NO  
Cam 2  
NC  
PSDR  
8
14  
DRAIN  
16  
17  
NC  
4
M
15  
25  
25  
26  
NO  
41  
19  
34  
WHT  
GRN  
3
V
TP  
Cam 5  
F
25  
NC  
(If used)  
DP  
3
20  
GND  
NO  
9
9
NO  
20  
1
2
3
GND  
V
D
NC  
NC  
Cam 4  
8
NC  
41  
40  
41  
16  
16  
(If used)  
DM  
NO  
NO  
115 VAC  
3
3
21  
3
40  
Cam 7  
NC  
COIL  
17  
17  
8
(If used)  
RM  
NO  
3
22  
Cam 6  
NC  
3
3
DSS  
5
5
50  
1CR  
BHTR  
BLK  
BOOSTER HEATER  
BLACK  
CT  
CONTACTOR  
1CR  
DDS DOOR SAFETY SWITCH  
RM RINSE MOTOR (IF USED)  
SRC Current Operated Start Relay  
RELAY  
CTC  
DM  
DP  
CONTACTOR COIL  
DETERGENT MOTOR  
BLU  
BLUE  
DRAIN PUMP (IF USED)  
DOOR SWITCH  
CAM 1  
CAM 2  
HOMING  
PUMP MOTOR  
DS  
DV  
SS  
TM  
TP  
SERVICE SWITCH  
TIMER MOTOR  
DRAIN VALVE  
CAM 3  
CAM 4  
CAM 5  
CAM 6  
PUMP MOTOR REVERSING  
DRAIN  
FILL  
FV  
FILL VALVE  
THERMAL PROTECTOR  
GND  
GRN  
GROUND  
GREEN  
WHT WHITE  
RINSE  
WHTR WATER HEATER  
HTLS  
MSW  
PSDR  
HIGH LIMIT THERMOSTAT  
MAIN SWITCH On/Fill- Off/Drain  
Prime Switch, Detergent/Rinse  
WTS  
WATER THERMOSTAT  
CAM 7  
CAM 8  
CLT  
DETERGENT  
CYCLE  
CYCLE ON LIGHT  
0509643B  
CUSTOMER TO SUPPLY RATED VOLTAGE/  
PHASE/HZ, AS SPECIFIED PER ORDER, TO  
DISCONNECT SWITCH. ALL POWER SUPPLIED  
TO EACH CONNECTION POINT MUST  
COMPLY WITH ALL LOCAL ELECTRICAL CODES.  
Figure 15 — Electrical Diagram, 401-HT (50 Hz)  
43  
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ELECTRICAL SCHEMATICS  
00042  
TIMING CHART 401-HT  
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100 110 120 130 140 150  
CAM  
TIME IN SECS  
HOMING  
CAM  
1
2
WASH PUMP  
FORWARD=WASH  
WASH PUMP  
2
REVERSE=DRAIN  
WASH PUMP  
REVERSING CAM  
3
4
5
6
7
8
DRAIN VALVE  
DRAIN PUMP  
FILL VALVE  
RINSE  
OPTIONAL  
PUMP  
DETERGENT  
PUMP  
AUTO-FILL  
DRAIN  
N
C
N
O
COM.  
TIMER  
SWITCH  
DETAIL  
8 7 6 5 4 3 2 1  
TIMER MOTOR  
LOCKING SCREW  
TIMER ASSEMBLY 401-HT  
Figure 16 —- Electrical Diagram, 401-HT, HTN  
44  
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TIMING CHARTS  
00043  
TIMING CHART 401-LT  
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100 110 120 130 140 150  
CAM  
TIME IN SECS  
HOMING  
CAM  
1
2
WASH PUMP  
FORWARD=WASH  
WASH PUMP  
2
REVERSE=DRAIN  
WASH PUMP  
REVERSING CAM  
3
4
5
6
7
8
9
DRAIN VALVE  
DRAIN PUMP  
FILL VALVE  
RINSE  
PUMP  
SANITIZER  
PUMP  
DETERGENT  
PUMP  
AUTO-FILL  
DRAIN  
N
C
N
O
COM.  
TIMER  
SWITCH  
DETAIL  
8 7 6 5 4 3 2 1  
9
TIMER MOTOR  
LOCKING SCREW  
TIMER ASSEMBLY 401-LT  
Figure 17 —Timer Chart and Diagram, 401-LT  
45  
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