Maytag Dishwasher ADB CDB1500AW User Manual

Dishwasher — Technical Information  
ADB/CDB1500AW*, ADB2500AW*, CDU650AW*, DDB1501AW*,  
PDBL390AW*, MDBH945AW*, MDBH955AW*, MDBH965AW*, MDBM601AW*,  
MDBS561AW*, MDBTT50AW*, MDBTT60AW*, MDBTT70AW*, MDB4651AW*,  
MDB5601AW*, MDB6601AW*, MDB7601AW*  
Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or  
repair of this unit.  
Refer to Service Manual 16021814 for detailed installation, operating, testing, troubleshooting, and disassembly  
instructions  
CAUTION  
!
All safety information must be followed as provided in Service Manual 16021814.  
WARNING  
!
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
Benefits  
ADB/CDB1500AW MDBH945AW* ADB2500AW* MDBH965AW* MDBM601AW*  
*
MDBTT50AW*  
MDBTT70AW* MDB5601AW*  
MDB6601AW*  
CDU650AW*  
DDB1501AW*  
PDBL390AW*  
Wash cycles  
Heavy Wash  
Normal Wash  
Quick Wash  
Light Wash  
Insta Wash  
Rinse Only  
3
X
X
X
4
X
X
5
X
X
X
6
X
X
5
X
X
X
X
X
X
X
X
X
X
Features  
Sound package  
QuietSeries™  
200  
QuietSeries™  
300  
QuietSeries™  
300  
Sofsound I™  
Sofsound II™  
High Temp  
Wash  
Electronic  
Controls  
X
X
X
X
X
X
X
X
X
X
Sanitizer  
Sensor clean  
X
X
X
X
X
X
X
X
100% Filtered wash Micro-Fine Plus 100% Filtered Micro-Fine Plus Micro-Fine Plus  
Water Filtration  
Delay Start  
water  
2,4 or 6 Hour Delay  
Filtration  
2,4 or 6 Hour  
Delay Start  
X
wash water  
2,4 or 6 Hour  
Delay Start  
X
Filtration  
1-9 Hour Delay  
Filtration  
2,4 or 6 Hour  
Delay Start  
X
Start  
X
Start  
X
Energy Star  
Hard Food  
Disposer  
Child lockout  
Touch Pad  
Controls  
Silverware  
Location  
Low rinse aid  
indicator  
X
X
X
6
X
X
X
X
X
X
5
In door  
X
10  
12  
11  
Wash  
Compartment  
Wash  
Compartment  
Wash  
Compartment  
In door  
X
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Component Specifications  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
Illustration  
Component  
Test Procedure  
Results  
Dishwasher Motor  
Measure resistance from  
ST5 (Motor Common – blue) to ST8  
(Motor Main - yellow)..........................  
See Component Specifications/Motor  
Connections for details.  
CCW rotation only  
viewed from shaft  
end.  
3 to 4 Ω  
1/3HP  
120V/60hz, 3.2 amps,  
3250 RPM  
Main Wattage, 285  
watts  
Start Wattage, 1115  
watts  
Control Panel  
See Component Specifications/  
Membrane Readings for  
troubleshooting/pin-out instructions.  
Water valve  
Measure resistance from  
J6 Pin 4 Aqua (Float switch) to ST4  
Black (Common) ...............................  
120V/60hz, 7 watts  
1.13 ± .10 gpm at 20-  
120 psi  
1.1 k Ω  
(This value assumes the float switch is  
closed).  
Vent wax motor  
Measure resistance from J6 Pin 1  
Purple (Vent) to ST4 Black (Common)  
............................................................  
1.2 k Ω  
120V with 1/4"  
actuation stroke  
within 90 seconds  
Dispenser wax motor  
Measure resistance from J6 Pin 3  
Tan (Dispenser) to ST4 Black  
120V with 1/4"  
actuation stroke  
within 90 seconds  
(Common) .........................................  
2 k Ω  
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Component Specifications  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
Illustration  
Component  
Limit Thermostat  
Test Procedure  
Results  
= Closed  
Infinite = Open  
Close on Temperature drop @ 149°F  
± 7°F (Temp) .......................................  
Open on Temperature drop @ 164°F  
± 4°F (Temp) .......................................  
0 Ω  
Sensor/Thermistor  
10K± 3% at 77°F and 2.4 k ±  
6.5% at 140°F  
J5 pin 1 - Orange (Temp) to J5 Pin 4 -  
Red (Neutral) ...................................... Infinite = Open  
0 Ω  
= Closed  
Heater/Heating  
Element  
Measure resistance from ST1  
Red/Black (Heater) to ST11 White  
(Common) ...........................................  
16 Ω  
120v/60hz, 650 watts  
± 5% in air, 830 watts  
± 5% in 90°F water  
(This value assumes the high limit  
thermostat is closed).  
Drain Motor  
Measure resistance from  
ST6 Gray (Drain) to ST4 Black  
(Common) ...........................................  
120v/60hz  
45 watts  
25 Ω  
See section “Motor Connections and  
Diagram” for wiring contacts.  
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Component Readings/Testing  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
Manual Function Test  
A Manual Function Test may be started by pressing the Heated Dry key  
5 times followed by the Start key within 8 seconds.  
Field Service Test  
A Field Service Test may be started by pressing the Heated Dry key 6 times  
followed by the Start key within 8 seconds. This test must be performed with  
clean water to insure proper sensor performance.  
The Normal Wash LED will Flash 3 times indicating manual test mode is  
active. Specific keypads will turn on or off a component as follows:  
“88” will appear in the display (if available*) and the following sequence of  
events will occur:  
KEY  
Hi Temp Wash  
Delay  
Function  
LED  
Hi Temp Wash  
Delay  
Wash Motor  
Water Inlet Valve  
Heating Element  
SECONDS  
FUNCTIONS / ACTIVE LOADS  
Vent Wax Motor / Water Valve  
106  
Heated Dry  
Heated Dry  
5
Thermistor check / Turbidity Sensor check &  
calibration - no loads active.  
Wash Motor / Vent Wax Motor / Dispenser  
Wax Motor  
Cycles Select / Normal  
First Press  
Vent  
Dispenser  
Drain Pump  
Heavy Wash  
Normal Wash  
Light Wash / China Crystal  
120  
Second Press  
Third Press  
180  
120  
4
Wash Motor / Heater / Vent Wax Motor  
Drain Pump  
Water Valve  
The test will cancel 120 seconds after the last keypad is pressed. The display  
(if available) will show ‘99’ until the remaining timeout period is less than 99  
seconds. At this point it will countdown until the modes times out, is cancelled,  
or another key is pressed. To cancel test, press the Start / Cancel keypad.  
The time for the Thermistor check / Turbidy Sensor check & calibration may  
vary slightly.  
The Field Service Test will not repeat. The Heavy Wash LED will Flash during  
the test mode. All Indicator lights (except Heavy Wash) will illuminate. If the  
dishwasher door is opened during the test, the test sequence will pause, and  
resume when the door is closed. To the cancel test, press the Start / Cancel  
keypad.  
Diagnostic Tips  
To check control LED’s and components, enter Field Service Test. If control  
,
fails to perform sequence as described, and a fault is detected, determine  
failure as described in the Field Service Test. If a load component failure has  
been diagnosed, proceed to the Manual Function Test. To check individual  
load components for proper operation, enter Manual Function Test. Follow  
test procedure as described. Repair or replace component as needed.  
The control has been designed to test the Sensor Memory, and Motor. During  
,
the Field Service Test, if a fault has been detected, the test will abort any time  
after the motor current has been checked and 2 or more LED's will begin to  
Flash. A Memory / Software Check will occur immediately after the test is  
started. The (Delay / Delay 2 hr) LED and one of the following:  
Note: The High Current or Low Current Motor Error may be detected during  
a wash cycle selected by a consumer. If this happens, the control will go into a  
30 second auto restart mode and shut down if the unit is not able to restart the  
motor.  
Turbidity Sensor - failure - Hi Temp Wash LED  
Thermistor - failure - Heavy Wash LED  
Motor - high current - Normal Wash LED  
Motor - low current - Light Wash LED  
Memory Failure Heated Dry LED  
-
Membrane Readings  
(All Models)  
* On select models  
Connector  
Measure Between  
Pin 9 - Pin 5  
J1  
Heavy Wash  
Normal Wash  
Light Wash / China Crystal / Gentle Wash  
Quick Wash  
Rinse Only  
*
*
Membrane Readings  
(Front & Top Controls)  
J1  
Pin 9 - Pin 6  
/
J1  
J1  
J1  
J1  
J1  
J1  
Pin 9 - Pin 7  
Pin 9 - Pin 8  
Pin 10 - Pin 5  
Pin 11 - Pin 5  
Pin 11 - Pin 6  
Pin 11 - Pin 8  
*
Measure Between  
Pin 10 - Pin 6  
Pin 10 - Pin 7  
Pin 10 - Pin 8  
Pin 11 - Pin 7  
Pin 12 - Pin 8  
Pin 9 - Pin 5  
Connector  
*
Insta Wash  
Tough Scrub Plus / Super Scrub / Power Scrub  
160° Wash  
Tough Scrub / Extra Wash / Hi Temp  
*
J1  
J1  
J1  
J1  
J1  
J3  
J3  
Auto Clean / Sensor Clean  
Heated Dry  
*
*
*
Sanitize  
*
*
Hi Temp Wash  
Model ID Jumper  
Start / Cancel  
Delay  
*
(Front Only Controls)  
Pin 9 - Pin 6  
Connector  
Measure Between  
Pin 9 - Pin 5  
(Top Only Controls)  
J1  
J1  
J1  
J1  
J1  
J1  
J1  
Cycle Select  
Start / Cancel  
Delay  
*
Pin 10 - Pin 6  
Pin 10 - Pin 7  
Pin 10 - Pin 8  
Pin 11 - Pin 7  
Pin 12 - Pin 5  
Pin 12 - Pin 7  
Measure Between  
Pin 10 - Pin 6  
Pin 10 - Pin 7  
Pin 10 - Pin 8  
Pin 11 - Pin 7  
Pin 12 - Pin 6  
Pin 13 - Pin 12  
Pin 13 - Pin 14  
Connector  
J1  
J1  
J1  
J1  
J1  
J1  
J1  
Insta Wash  
*
Tough Scrub Plus / Super Scrub / Power Scrub  
*
Tough Scrub Plus / Super Scrub  
160° Option  
Tough Scrub / Extra Wash / Hi Temp  
*
Tough Scrub / Extra Wash / Hi Temp  
Insta Wash  
Model ID Jumper  
*
*
*
*
Model ID Jumper  
Start Cancel  
Delay  
*
An unpressed switch will read as an open circuit.  
A pressed switch will read as 10k  
* On select models  
.
Load Readings  
Measure Between  
ST1 (Heater) - ST11 (Dlb Neutral)  
ST5 (Motor Common) - ST8 (Motor Main)  
ST6 (Drain) - ST4 (Dlb Line)  
Result  
16  
3 to 4  
Heater¹  
Wash Motor  
Drain Motor  
25  
Vent Wax Motor  
Dispenser Wax Motor  
Water Valve²  
J6 Pin 1 (Vent) - ST4 (Dlb Line)  
J6 Pin 3 (Disp) - ST4 (Dlb Line)  
J6 Pin 4 (Inlt) - ST4 (Dlb Line)  
1.2k  
2k  
1.1k  
Thermistor  
J5 Pin 1 (Temp) - J5 Pin 4 (Neutral) See Component Info  
Notes:  
1. This value assumes the high limit thermostat is closed.  
2. This value assumes the float switch is closed.  
July 2005  
©2005 Maytag Services  
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16026393  
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Electrical Diagnostics  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
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Control Definition  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
Designed to provide a  
longer cycle for  
Designed to auto  
washing items with  
select the number  
heavy food soils.  
of fills and length  
Water usage is 8  
of wash times  
gallons.  
based on soil  
level of dish  
load. Water  
usage ranges  
from 3 to 8  
Designed to wash  
loads containing  
dishes with normal  
amounts of food  
gallons.  
soils. Water usage  
ranges from 3 to  
6 gallons.  
Delays the start of  
the dishwasher  
based on user  
selection.  
Designed for light  
food soils. The  
cycle ends with  
a rinse and does  
not include drying.  
Water usage is 4  
gallons.  
This option improves drying  
results by turning the heating  
element on and off during the  
dry portion of the cycle.  
Rinses dishes being  
This option monitors  
cycles for sanitization.  
held until the dishwasher  
is full, and another cycle  
is selected. This cycle  
helps reduce the  
potential for developing  
odors. Water usage  
is 2 gallons.  
This option raises  
Temperature in the  
Final rinse to 160° F  
Light Wash- Designed to wash loads containing dishes that are lightly soiled Water usage is 5 gallons.  
Insta Wash-  
Auto Clean-  
Designed to wash loads containing dishes that are lightly soiled Water usage is 5 gallons.  
Designed to auto select the number of fills and length of wash times based on soil level of dish load.  
Water usage ranges from 3 to 8 gallons.  
Tough Scrub- This option adds fills, heat and/or wash time to the wash cycle.  
July 2005  
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Control Definition  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
Options  
C yc les  
Options  
C yc les  
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Motor Connectivity  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
Wire harness  
Connection plug  
(Start)  
Green  
(Ground)  
Yellow  
(Main)  
Blue(Common)  
1/3HP  
120V/60hz, 3.2 amps, 3250 RPM  
July 2005  
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Cycle Chart  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
16026393  
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Wiring Diagram  
WARNING  
To avoid risk of electrical shock, personal injury, or death, disconnect power to dishwasher before servicing.  
!
July 2005  
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