PROGRAMMING MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
41154.0000B 12/09 ©2008 Bunn-O-Matic Corporation
INTRODUCTION
Thisequipmentwillbrewa1⁄2 gallonbatchofcoffeeintoanawaitingdecanter.Thebrewermayhave
a hot water faucet for allied beverage use. It is only for indoor use on a sturdy counter or shelf.
CONTENTS
Adjustments & Programming ................................................................ 4
Troubleshooting................................................................................... 14
41154 041708
Page 3
ADJUSTMENTS & PROGRAMMING
PROGRAMMING THE BREWER
The programming of the brewer is divided into two levels. Brewing adjustments are in "BrewWiz-
ard". Service functions are accessed in Level 2.
The following function screens are in order of appearance. Each screen will have instructions on
how to access, and the procedures to program the various functions of the brewer.
IMPORTANT PROGRAMMING NOTES
- READ CAREFULLY -
To exit the programming mode at any time, press and release "ENABLE BREW ON/OFF" switch
located on the front switch panel. The display will return to the MAIN SCREEN.
If none of the five programming switches are pressed within one minute during the setup of the
brewer, the programming of the function screen that is being set will be exited and the display will
return to the MAIN SCREEN.
Always remember to place an empty server and funnel under the sprayhead when operating the
brewer during the set-up of PULSE BREW, CALIBRATE FLOW and testing the brew valve in SER-
VICE TOOLS/TEST OUTPUTS.
PROGRAM FUNCTIONS - BREW WIZARD
MAIN SCREEN
BREW LOCKOUT
This function allows the operator to prevent
or allow brewing if the water temperature is less
than the set READY temperature.
Toaccessthisfunctionscreenpressandhold
therighthiddenswitch.Releasewhenthedisplay
reads: "BREW WIZARD" it will then read:
READY TO BREW
WATER TEMP: 200°
PROGRAMMING LOCKOUT SWITCH
(Mounted on main control board)
BREW LOCKOUT?
NO
DONE YES
This switch can be set to prevent access to the
programming settings of the brewer. Once all
the correct brew settings are programmed, the
operatorcansettheswitchtothe"ON"positionto
prohibit anyone from changing the settings.With
theswitchinthe"ON"position, theprogramming
menus can still be accessed to view the current
settings. However, no changes will be saved.
Press here Press here
Press here
for DONE for YES
for NO
The YES or NO should be flashing. Select YES
to prevent brewing if the water temperature is
below the set READY temperature. Select NO
to permit brewing at any water temperature.
When finished, press and release DONE. This
will step to the next function screen. To return
to the MAIN SCREEN at any time, press and
Disconnect brewer from
power source before
removing any panel!
release "ENABLE BREW ON/OFF".
Page 4
P3634
41154 041708
ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
PROGRAMMING FUNCTIONS - BrewWIZARD (cont.)
The functions in the "BrewWIZARD" allow the operator to adjust brew settings and other features.
BREW OZ:
This function allows the operator to adjust the brew volume.
Procedure:
1. Press and hold the right hidden switch until the display reads "BrewWIZARD" and release.
2. The display will then read: "BREW OZ: xx.x"
3. Press (-) "Digital" to decrease the amount, or (+) "Control" to increase.
Range: (10 to 192 oz., in .5 oz. increments) or (.30 to 6.60 Liters, in .01 increments)
4. When finished, press "DONE". This will take you to the next screen. Press and release the right
hidden switch to continue to the next screen, or press and release the "ENABLE BREW ON/OFF"
switch to return to the main screen.
BREW OZ: 64.0
(-)
DONE
(+)
BREW METER:
This function allows the operator to adjust the brew strength/extraction time. Setting #1 will produce
a non-pulsed brew cycle and the highest (#14) will give you the longest time (utilizing pulse brew).
Procedure:
1. Press and hold the right hidden switch until the display reads "BrewWIZARD" and release.
2. The display will then read: "BREW OZ: xx.x"
3. Press and release the right hidden switch until the display reads "BREW METER"
4. Press (-) to decrease the amount, or (+) to increase. (Range: 1 - 14)
5. When finished, press and release the right hidden switch. This will take you to the next screen,
or press and release the "ENABLE BREW ON/OFF" switch to return to the main screen.
Weakest (Shortest)
BREW METER
Strongest (Longest)
1
BREW METER 14
+
-
+
-
NOTE: This will overwrite settings in "PULSE BREW"
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ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
ENABLE ADS
able characters. When the desired character
is shown on the display, press and release
"NEXT" to move to the next character in the
top line.
Thisfunctionallowstheoperatortochoosewheth-
er or not to display an advertising message. An
ad can be saved to the brewer by writing the ad
usingtheprogrammingcommands.Thismessage
will be displayed when the brewer is idle.
11.Repeat step 10 until the top line is com-
plete.
12.Pressandrelease"DONE".Thedisplayshould
now read "WRITE BTM LINE?".
13.To write the bottom line of the new ad, press
and release "YES".
Procedure to Enable/Disable Ads:
1. Press and hold the right hidden switch until
thedisplayreads"BrewWIZARD"thenrelease.
Pressandreleasetherighthiddenswitchuntil 14.To skip the bottom line, press and release
thedisplayreads"ENABLEADS?".The"YES"
or "NO" will be flashing to indicate the current
selection.
"NO".
a. If neither a top nor bottom line was writ-
ten, the display should now read "ENTER
SERVICE #?".
b. If only a top line was written, the ad will
be displayed followed by "SAVE?" Proceed to
step 18.
2. Press and release the "NO" switch to disable
this function, or:
3. Press and release the "YES" switch to enable
this function.
4. When finished, press and release "DONE" to
save the new setting and advance to the next
function screen.
5. If "NO" was selected, the display should now
read "ENTER SERVICE #?".To exit program-
ming and return to the MAIN SCREEN, press
and release the "ENABLE BREW ON/OFF"
switch.
15.The display will now read A with a flashing
cursorbelowit. Pressandholdthe"SCROLL"
switchtoscrollthroughthealphabetandavail-
able characters. When the desired character
is shown on the display, press and release
"NEXT" to move to the next character in the
bottom line.
16.Repeat step 15 until the bottom line is com-
plete.
17.Press and release "DONE". The display will
now show the written ad, and then "SAVE?"
6. If "YES" was selected, the display should now
read "NEW AD?". This screen allows you to
write a new ad.
7. The display should now read "2 LINES 16 18.To cancel saving the ad, press and release
CHARS AVAILABLE", and then "SCROL
THRUALPHA,NEXT->NEXTLETTER",and
then "WRITE TOP LINE?".The ad can be up
to 32 characters long, 16 per line.The ad will
be written in two steps, first the top line, then
the bottom line.
"NO". The display should now read "ADVER-
TISEMENTNOTSAVED!"andthenwillreturn
to the "NEW AD" screen. To exit program-
ming and return to the MAIN SCREEN, press
and release the "ENABLE BREW ON/OFF"
switch.
9. To write the top line of a new ad, press and
release "YES". To skip the top line and only
write a bottom line, press and release "NO"
19.To correct or edit the ad, press and release
"EDIT". The display should now read "WRITE
TOP LINE?" Repeat steps 10 though 17.
and proceed to step 13. To exit program- 20.To save the ad as it is shown, press and re-
ming and return to the MAIN SCREEN, press
and release the "ENABLE BREW ON/OFF"
switch.
lease "YES". The display should now read
"ADVERTISEMENT SETUP COMPLETE",
and then "ENTER SERVICE #?". To exit pro-
gramming and return to the MAIN SCREEN,
press and release the "ENABLE BREW ON/
OFF" switch.
10.The display will now read "A" with a flashing
cursor below it.Press and hold the "SCROLL"
switchtoscrollthroughthealphabetandavail-
41154 041708
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ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
ENABLE ADS ?
NO
DONE YES
NOTE: The available characters are:
A through Z
0 through 9
! " # $ % & ' ( ) * + , - . / : ; < = > ? @
NEW AD ?
YES
NO
WRITE TOP LINE ?
NO YES
2 LINES 16 CHARS
AVAILABLE
SCROL THRU ALPHA
NEXT NEXT LETTER
WRITE BTM LINE ?
A
NO
YES
SCROLL DONE NEXT
ENTER SERVICE #?
SAVE ?
EDIT YES
NO
ADVERTISEMENT
NOT SAVED !
ADVERTISEMENT
SETUP COMPLETE
ENTER SERVICE #?
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ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
SERVICE NUMBER
This function allows the operator to enter in the
telephonenumbertocallifserviceisneeded.The
service number will be displayed anytime there
is a fault message displayed.
Procedure to enter the service number:
1. Press and hold the right hidden switch until
thedisplayreads"BrewWIZARD"thenrelease.
Pressandreleasetherighthiddenswitchuntil
the display reads: "ENTER SERVICE #?"
2. Press and release "YES" switch.The display
will now read "SCROL THRU #'S NEXT - >
NEXT NUMBER", followed by "SCROLL
DONE NEXT".
3. Press the "SCROLL" switch to increment the
number.When the desired number is shown,
press and release the "NEXT" switch to move
to the next digit in the phone number.
4. Repeat Step 3 until the entire number is en-
tered.
ENTER SERVICE #?
NO YES
SCROL THRU #'s
NEXT NEXT NUMBER
SCROLL DONE NEXT
5. Press and release the "DONE" switch. The
displaywillnowread"EXITINGBrewWIZARD"
and then "ENTER PASSWORD".
PROGRAMMING FUNCTIONS - LEVEL 2
ENTER PASSWORD
EXITING
This function allows the operator to enter a 3
digit number to access LEVEL 2. If no number
has been pre programmed (0 0 0), then access
is allowed by pressing and releasing the right
hidden switch.
BrewWIZARD
Procedure to enter the "PASSWORD":
1. Press and release the "Digital" switch to in-
crement the first digit.
ENTER PASSWORD
0
0
0
2. Press and release the "Brewer" switch to
increment the second digit.
3. Press and release the "Control" switch to
increment the third digit.
4. Press and release the right hidden switch. If
thecorrectpasswordwasentered,thedisplay
willnowread"SETPASSWORD".Ifthewrong
passwordwasentered,theunitwillrevertback
to the main screen.
41154 041708
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ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
NOTE: Access to the remaining functions in LEVEL 2 is intended for trained service personnel only.
More in depth information can be found in the Axiom Service Manual 39132.0000
Any 3 digit number may be programmed to prevent unauthor-
SET PASSWORD
ized access of LEVEL 2. BE CAREFUL TO USE A CODE YOU WILL
REMEMBER!
0
0
0
Choose between English or Spanish. After selecting "YES",
press either ( + ) or ( - ) to select, then choose "YES" again
when asked, "ARE YOU SURE?"
SET LANGUAGE
NO YES
Choose between English or Metric units. Display will read:
"CHANGINGUNITSWILLCAUSE""ALLSETUPINFOTOBE
LOST" "AREYOU SURE?" "NO YES". NOTE: If the brewer
is set for Metric Units, displays will be different. (ex: Brew oz
will become Brew Liters, ° F will be ° C).
UNITS
METRIC DONE ENG
Adjusts brew tank temperature.
RANGE: (185 to 205° F) or (85 to 96° C)
SET TEMP:
(-) DONE
200°
(+)
This function sets the minimum temperature allowable to start
a brew cycle.Range:(2° to 20° F) or (2° to 10° C) below the set
temperature.The water must be at the "READY" temperature
or higher for the display to indicate "READY TO BREW".
SET READY: 195°
(-) DONE (+)
This function allows the you to enter in an optional asset num-
ber.This can be useful for tracking the usage or service of an
individual machine within a group.
ENTER ASSET # ?
NO YES
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ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
"EASY PULSE BREW" times:
Min: Base brew time + 40 seconds
Max: Base brew time + 3:00 minutes
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
This function allows the sprayhead to “pulse” on and off dur-
ing a brew cycle. These times can be set two different ways.
The first is by setting the total brew time in the "EASY PULSE
BREW" screen.The other option allows the actual times to be
entered in the "MANUAL PULSE BREW" screen.
SET PULSE BREW ?
NO
YES
(+)
NOTE:This will overwrite settings in "BREW METER".
Adjusts the DRIP TIME (time from end of sprayhead flow to
when liquid stops dripping from the funnel). When the brew
cycle is complete, the display will show "DRIPPING" and will
countdown the time until the funnel empties.
DRIP TIME 0:30
(-)
DONE
RANGE: "OFF" or 0:05 to 4:00 minutes
Set the time before a cleaning alert will be displayed.
RANGE: 1 to 30 days
ENABLE CLEAN
NO DONE YES
Enables the mode function and sets the idle time.Then choose
to have the tank heater(s) turn off, or reduce the tank temp to
(140° F) or (60° C) once the set idle time has expired.
Range: 0.5 to 24.0 hrs
Enabl EnergySavr
NO DONE YES
Enables the "FRESHNESS ALERT!" message and sets the
expiration time. The expiration time is the amount of time the
product is allowed to sit in the server before an alert message
is displayed.
EnableFreshTimer
NO
DONE YES
Range: 0.5 to 4.0 hrs
Sets the amount of time a warmer will remain on after being
turned on. Each warmer has an independent timer and is af-
fected by its corresponding switch. NOTE: The lower "Brew"
warmertimerisrestartedwhenbrewswitchispressed. Range:
15mins to 6.0 hrs in 15 min increments.
ENABL WARMER OFF
NO
DONE
YES
Adjusts the sensitivity of the refill circuit. Water in different
geographical locations can have different conductivities.Make
sure the water in the tank is touching the refill probe. NOTE:
Always make sure that the # on the right is larger than the #
on the left when water is contacting the tank refill probe.
0
REFILL 155
DONE (+)
(-)
41154 041708
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ADJUSTMENTS & OPTIONAL SETTINGS (CONT.)
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
The BrewLogic system allows the brewer to be calibrated to
ENABLE BrewLOGIC
NO DONE YES
high mineral locations and compensate as deposits build up
internally. Press YES, then press DONE. Follow the prompts.
Pertains only to software version 1.07 & above!
Go to
SPRAY OZ/M:
Select a sturdy, level location.
Brewer must not be bumped during calibration!
PLACE BREWER IN
FINAL LOCATION
Select YES for calibration. Selecting NO warns of accuracy
risk
CALIBRATE NOW?
NO
YES
Select CAL. to start calibration procedure. Selecting OK will
skip to level probe calibration screen.
ACCURACY RISK!!!
OK
CAL.
Go to CAL
LP1-LP2
Automatically checks to see if tank temperature is between
130°-170°F (54°-76°C)
TOO HOT-WILL
COOL TANK NOW
Verifybrewfunnelanddecanter/airpot/thermalserver(depend-
ing on which model you have) are in place. Then press the
"BREW START" button.
PRESS BREW WHEN
CONTAINER READY
Message will be displayed while dispense is being performed.
Tank heaters are turned off and the unit will dispense for ~1
minute to cool tank temperature.
COOLING TANK
PLEASE WAIT
(CONT.)
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PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
When the dispensing finishes, empty the decanter/server and
CONTAINER READY?
place back under brew funnel.
Select YES for calibration. Selecting QUIT will skip to level
probe calibration screen.
QUIT
YES
Go to CAL
LP1-LP2
Press the "BREW START" button.Will perform the sprayhead
flow-rate calibration as well as the level probe calibration.
CALIBRATE SPRAY
PRESS BREW START
Brewer must not be bumped during calibration!
Machine will dispense volume between upper probe and
lower probe 4 times. (The total dispense will be about half of
a decanter)
WaitingTilCycle 4
CYCLE x COMPLETE
Brewer must not be bumped during calibration!
Enter volume dispensed into container.
Use the (+) to increase the numeric value or (-) to decrease.
ENTER OZ XX.X
(-)
DONE
(+)
Displays sprayhead flow-rate and volume of water between
the upper and lower level probes.
SPRAY OZ/M: XX.X
LP1-LP2 OZ XX.X
Allows you to perform calibration again if you want to verify
results.
CALIBRATE LP1-LP2
NO
YES
Go to BREW
COUNTERS
Go to CAL
LP1-LP2
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Page 12
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
View or enter the actual flow rate coming out of the sprayhead.
SPRAY OZ/M: 25.0
(-) DONE (+)
This is used to tell the internal controller how fast the water
is flowing. Use the "CALIBRATE FLOW" screen to obtain the
most current flow rate.
Range: (3.0 to 75.0 oz) or (100 to 2200ml)
This function provides a 60 second test mode to capture
water from the sprayhead. This measurement will then give
you the numbers to enter into the "SPRAY OZ/M: xx" screen
above.NOTE: Should be performed after deliming and/or
changing sprayhead. (Will not display when "BrewLogic"
is enabled)
CALIBRATE FLOW ?
NO YES
Tracksthetotalnumberofbrewcyclescompleted.Thereisone
reset-able counter, and one life counter that is not reset-able
BREW COUNTERS ?
NO YES
Allows the testing of individual components and the ability to
check the membrane switches for proper function.(Diagnostic
tool for troubleshooting purposes only)
SERVICE TOOLS ?
NO YES
Reset ALL of the previously entered brew settings, ad mes-
sage, calibrations, etc. Factory-set default values will replace
ALL previous settings.
FACTORY DEFAULTS
NO
YES
NOTE: Items not affected; Service #, Password, Language,
Units, Asset #, Counters and Serial Number.
INITIAL FACTORY DEFAULT VALUES
Brew Lockout
BREW
BREW METER
ENABLE ADS
PASSWORD
Language
NO
64 OZ
1
NO
0
English
English
200° F
195° F
ENABLE ENERGY SAVER -
ENABLE FRESH TIMER -
ENABLE WARMER OFF -
REFILL -
NO
NO
NO
155
(2.0L)
SPRAY
25.0 oz/M (739ml/M)
Software Version 1.07 & above
BrewLogic
Units
SET TEMP
OFF
(93° C)
(90° C)
0
DISABLED
0:30
SET READY
ENTER ASSET # -
PULSE BREW -
DRIP TIME -
ENABLE CLEAN -
NO
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TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
REMEDY
Temperature Too Low
1. Water temperature in the
A) Wait for the brewer to heat
tank does not meet the ready to the proper temperature.
temperature.
B) Disable the BREW LOCK-
OUTfunction. Refertoprogram-
ming section for procedure.
Heating Time Too Long
Fill Time Too Long
1. Tank Heater failure.
Service required
2. Control Board/Thermistor Service required
failure
1. Water shut off to brewer
Check water supply shut-off
2. Supply line too small or ob- Replace or repair as needed
structed
3. Inlet Solenoid failure
4. Control Board Failure
5. ON/OFF switch is OFF
Service Required
Service Required
Turn switch ON
Temp Sensor Out Of Range,
Check For Bad Connections
1. Temperature Sensor Probe
wire(s) broken or not making
connection
Service required
Service required
Temp Sensor Out Of Range,
Check Wire For Shorts
1. Temperature Sensor Probe
wire(s) shorted to housing or
to each other.
Equipment will not operate
1. No power
Verify power cord is plugged
into outlet.
2. Incorrect voltage
1. Refill valve
Service required
Service required
Water flows into tank continu-
ously with power removed from
brewer.
41154 041708
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TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Brew cycle will not start
1. No water
Check plumbing and shut-off
valves
2. Water temperature in the
A) Wait for the brewer to heat
tank does not meet the ready to the proper temperature
temperature.
B) Disable the BREW LOCK-
OUTfunction. Refertoprogram-
ming section for procedure.
Turn on
3. "ENABLE BREW ON/OFF"
switch not on.
Service required
Service required
Service required
Refer to cleaning section.
Service required
Service required
4. Brew switch
5. Brew valve
6. Control Board
1. Lime buildup
2. Temperature probe
3. Control Board
Spitting or unusual steaming
from sprayhead or air vent.
Inconsistent beverage level
1. Lime buildup
2. Brew valve
Refer to cleaning section.
Service required
Dripping from sprayhead.
Water overflows filter.
1. Brew valve
Service required
1. Type of paper filter
BUNN paper filters should be
used for proper extraction
2. No sprayhead
Replace sprayhead
Beverage overflows decanter
1.Beverageleftindecanter from
previous brew
The brew cycle should be start-
ed only with an empty decanter
under the funnel.
2. Brew volume adjustment
Adjust the brew volume, cali-
brate sprayhead as required to
achieve the desired volume for
each brew cycle.
41154 041708
Page 15
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Weak beverage.
1. Type of paper filter
BUNN paper filters should be
used for proper extraction
2. Coffee
For coffee, a sufficient quantity
of fresh drip or regular grind
should be used for proper ex-
traction.
3. Sprayhead
A BUNN sprayhead should be
used to properly wet the bed of
ground coffee in the funnel
4. Funnel Loading
The BUNN paper filter should
be centered in the funnel and
the bed of grounds leveled by
gently shaking.
5. Water temperature
Place empty funnel on top of an
empty server (not in the funnel
rails). NOTE: Do not remove
sprayhead!
WARNING: HOT WATER
Press brew. Check water tem-
peratureimmediatelybelowthe
sprayhead with a thermometer.
Recommendedreadingshould
be at least 195°F (90°C).
6. Incorrect recipe
Consider adjusting brew vol-
ume, and/or BREW METER.
41154 041708
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TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE
REMEDY
Brewer is making unusual 1. Solenoids vibrating
Service required.
noises.
2. Plumbing lines
Plumbing lines should not be
resting on the countertop.
3. Water supply
The brewer must be connected
to a cold water line. Water pres-
sure to the brewer must not be
higher than 90 psi (620 kPa).
Install a regulator if necessary
to lower the working pressure
to approximately 50 psi (345
kPa).
4. Tank heaters
Service required.
"CHECK SPRAYHEAD FOR 1. Lime buildup in sprayhead
LIME" - "CHECK FITTINGS
Refer to cleaning section.
Refer to cleaning section.
Service required.
FOR LIME"
2. Lime buildup in brew valve
3. Lime buildup in brew tank
"WARNING INACCURATE 1. Lime buildup in sprayhead
FLOW" - "TOO MUCH LIME
Refer to cleaning section.
Refer to cleaning section.
Service required.
PLEASE REPAIR"
2. Lime buildup in brew valve
3. Lime buildup in brew tank
"WARNINGVERYLOWFLOW" 1. Lime buildup in sprayhead
- "PLEASE REPAIR"
Refer to cleaning section.
Refer to cleaning section.
Service required.
2. Lime buildup in brew valve
3. Lime buildup in brew tank
41154 041708
Page 17
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