Maytag MDB series User manual

TECHNICAL EDUCATION
JOB AID W10329932
L-84
Vertical Modular
Washer
M-17
Maytag Dishwashers
4-Blade Stainless Steel Chopper
W11035362
SERVICE MANUAL

ii n Maytag Chopper Dishwashers
FORWARD
This Maytag Service Manual, "Maytag Dishwashers, 4-Blade Stainless Steel Chopper" (Part No.
W11035362), provides the In-Home Service Professional with service informaon for the “Maytag Chopper
Dishwasher."
The Wiring Diagram used in this Service Manual is typical and should be used for training purposes only.
Always use the Wiring Diagram supplied with the product tech sheet when servicing the dishwasher.
For specic operang and installaon informaon on the model being serviced, refer to the “Use and Care
Guide” or “Installaon Instrucons” provided with the dishwasher.
GOALS AND OBJECTIVES
The goal of this Service Manual is to provide informaon that will enable the In-Home Service Professional
to properly diagnose malfuncons and repair the “Maytag Chopper Dishwasher.”
The objecves of this Service Manual are to:
• Understand and follow proper safety precauons.
• Successfully troubleshoot and diagnose malfuncons.
• Successfully perform necessary repairs.
• Successfully return the dishwasher to its proper operaonal status.
WHIRLPOOL CORPORATION assumes no responsibility for any repairs made on our
products by anyone other than authorized In-Home Service Professionals.
Copyright © 2017, Whirlpool Corporaon, Benton Harbor, MI 49022

Maytag Chopper Dishwashers n iii
TABLE OF CONTENTS
Maytag Chopper Dishwashers
SECTION 1 — GENERAL INFORMATION
DISHWASHER SAFETY.........................................................................................................................1-2
GENERAL THEORY OF OPERATION.....................................................................................................1-3
NEW COMPONENTS ...........................................................................................................................1-4
MODEL & SERIAL NUMBER LABEL .....................................................................................................1-6
TECH SHEET LOCATION.......................................................................................................................1-6
MODEL & SERIAL NUMBER NOMENCLATURE ...................................................................................1-7
DISHWASHER SPECIFICATIONS ..........................................................................................................1-8
PARTS & FEATURES.............................................................................................................................1-9
NOTES ...............................................................................................................................................1-10
SECTION 2 — DIAGNOSTICS & TROUBLESHOOTING
DIAGNOSTIC & TROUBLESHOOTING WARNINGS..............................................................................2-2
SERVICE DIAGNOSTIC CYCLE ..............................................................................................................2-3
SERVICE DIAGNOSTIC CYCLE NOTES ..................................................................................................2-4
CUSTOMER CYCLE OPERATION ..........................................................................................................2-4
SERVICE DIAGNOSTICS WITH ERROR CODES.....................................................................................2-5
SERVICE ERROR CODES ......................................................................................................................2-6
TROUBLESHOOTING GUIDE .............................................................................................................2-11
SECTION 3 — TESTING
TESTING WARNINGS...........................................................................................................................3-2
WIRING DIAGRAM..............................................................................................................................3-3
CONTROL BOARD INFORMATION ......................................................................................................3-4
FUSE SERVICE & RESISTANCE CHECKS................................................................................................3-4
COMPONENT TESTING .......................................................................................................................3-4
ELECTRONIC CONTROL BOARD..........................................................................................................3-5
METER CHECK OF LOADS & SUPPLIES................................................................................................3-5
GENERAL THEORY OF OPERATION.....................................................................................................3-6
POWER CHECK....................................................................................................................................3-6
DOOR SWITCH CIRCUIT ......................................................................................................................3-7
FILL CIRCUIT........................................................................................................................................3-8
DISPENSER CIRCUIT............................................................................................................................3-9
WATER HEATING/HEAT DRY .............................................................................................................3-10
WATER SENSING WITH OWI SENSOR...............................................................................................3-11
WASH/RINSE MOTOR.......................................................................................................................3-12
DRAIN MOTOR..................................................................................................................................3-13
VENT WAX MOTOR...........................................................................................................................3-14
VENT FAN..........................................................................................................................................3-15
AC FAN MOTOR.................................................................................................................................3-16
POWER BLAST...................................................................................................................................3-17
USER INTERFACE (UI)........................................................................................................................3-19

iv n Maytag Chopper Dishwashers
PRODUCT SPECIFICATIONS & WARRANTY INFORMATION SOURCES (inside back cover)
SECTION 4 — COMPONENT ACCESS
ADJUSTABLE DOOR SPRINGS .............................................................................................................4-2
INSULATION BLANKET........................................................................................................................4-3
DOOR LATCH STRIKE...........................................................................................................................4-3
ACCESSING DOOR COMPONENTS......................................................................................................4-4
USER INTERFACE.................................................................................................................................4-4
REMOVING DOOR LATCH ASSEMBLY .................................................................................................4-5
REMOVING ELECTRONIC CONTROL BOARD ......................................................................................4-6
REMOVING DISPENSER ASSEMBLY....................................................................................................4-7
REMOVING WATER FILL & DISPENSER COMPONENTS......................................................................4-8
ADVANCED POWER DRY (SIDE DRY) ..................................................................................................4-9
OVERFILL ASSEMBLY ........................................................................................................................4-10
IN TUB COMPONENTS......................................................................................................................4-11
SPRAY ARMS, FEED TUBE, AND MANIFOLD.....................................................................................4-12
REMOVING THE RACKS ....................................................................................................................4-13
REMOVING LOWER SPRAY ARM ......................................................................................................4-14
UNDER TUB COMPONENTS..............................................................................................................4-15
REMOVING HEATER ASSEMBLY........................................................................................................4-16
REMOVING DRAIN PUMP ................................................................................................................4-17
REMOVING OPTICAL WATER INDICATOR (OWI)..............................................................................4-18
REMOVING THE SUMP ASSEMBLY...................................................................................................4-19
CHOPPER MOTOR ASSEMBLY PARTS ...............................................................................................4-22
REMOVING THE CHOPPER MOTOR ASSEMBLY................................................................................4-23
NOTES ...............................................................................................................................................4-26
Maytag Chopper Dishwashers
TABLE OF CONTENTS (CONTINUED)

GENERAL INFORMATION
Maytag Chopper Dishwashers n 1-1
Section 1:
General Information
This secon provides general safety, parts, and informaon for
the “Maytag Chopper Dishwasher.”
nDishwasher Safety
nGeneral Theory of Operaon
nNew Components
nModel & Serial Number Label
nTech Sheet Locaon
nModel & Serial Number Nomenclature
nDishwasher Specicaons
nParts & Features
nNotes

1-2 n Maytag Chopper Dishwashers
GENERAL INFORMATION
Dishwasher Safety
You can be killed or seriously injured if you don't immediately
You can be killed or seriously injured if you don't follow
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what can
happen if the instructions are not followed.
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read and obey all safety
messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.”
These words mean:
follow instructions.
instructions.
DANGER
WARNING

GENERAL INFORMATION
Maytag Chopper Dishwashers n 1-3
General Theory of Operation
Maytag Chopper Wash System
Maintenance Free Chopper System
A 4-Blade stainless steel chopper pulverizes food, prevenng
parcles from plugging the wash system and spray jets,
providing opmal cleaning without the need to prerinse
No more scraping plates. The 4-blade stainless steel chopper
disintegrates the food parcles that come o your dishes so
they don’t end up recirculang and scking to your dishes and
glassware.
How Chopper Works (See Figure 1)
1. Water and food parcles ow through the coarse lter
then are disintegrated by the Chopper blades (A).
2. An impeller pulls soiled water into the wash pump
through the screen (B), ltering soil parcles too large
to pass through and sending them back to the Chopper
blades.
3. The wash water is then cycled back through the spray
arms (C).
4. During the drain phase, a secondary pump ushes out
used wash water.
Figure 1 - Chopper Wash System
nMaytag® dishwashers feature the most
powerful motor on the market, so you
can be sure what you put in comes out
clean.
(A)
(B)
(C)

1-4 n Maytag Chopper Dishwashers
GENERAL INFORMATION
New Components
Chopper Sump Assembly Top & Boom Views
Accumulator Cover
Accumulator Screen Ass’y
Diverter Cover
Chopper Motor Assembly
Drain Pump Port
Motor Capacitor
Chopper Motor Assembly
Figure 2 - Chopper Sump Assembly - Top
Figure 3 - Chopper Sump Assembly - Bottom

GENERAL INFORMATION
Maytag Chopper Dishwashers n 1-5
New Components
New Stainless Steel Elements
FID Console Display with Stainless Steel Bar Handle (Figure 4)
Full Stainless Steel Tub, Spray Arms, and Sump Cover (Figure 6)
Full Stainless Steel Tub
Stainless Steel Spray Arms
Stainless Steel Sump Cover
7 - Segment Display
Stainless Steel Silverware Basket (Figure 5)

1-6 n Maytag Chopper Dishwashers
GENERAL INFORMATION
Tech Sheet Location
Model & Serial Number Label
Tech Sheet Location
Figure 7 - Model/Serial Number Label located inside, on left side wall, toward front.
Figure 8 - Tech Sheet located behind toe panel inside insulation folds.
Model & Serial Number
Label Location

GENERAL INFORMATION
Maytag Chopper Dishwashers n 1-7
MODEL NUMBER M D B 89 69 S D E 0
INTERNATIONAL SALES OR
MARKETING CHANNEL
BRAND CLASSIFICATION
M = Maytag
PRODUCT IDENTIFIER
D = Dishwasher
PRODUCT TYPE
B = Built-in
FEATURE SET
Ranges from 49-89. The higher the number, the more features
CONSOLE
49 = Traditional control, 69 = Fully integrated control
TUB MATERIAL
S = Stainless Steal
YEAR OF INTRODUCTION
D = 2014
COLOR
W or H = White, B or E = Black, M = Monochromatic SS, Z = Stainless Steel, K = Cast Iron
ENGINEERING CHANGE
0 = Basic Release; 1 = First Revision; 2 = Second Revision
Model & Serial Number Nomenclature
SERIAL NUMBER F 4 25 10000
MANUFACTURING SITE
F = FINDLAY, OH
YEAR OF MANUFACTURE
4 = 2014
WEEK OF MANUFACTURE
PRODUCT SEQUENCE NUMBER

1-8 n Maytag Chopper Dishwashers
GENERAL INFORMATION
Dishwasher Specifications
Line Voltage/Frequency : 120 VAC/60 Hz
Amps : 15A
Low Volts Power Supply : -5 VDC (REF), 13 VDC (+8V, -5V), Neutral (VCC)
Supply Water Flow Rate : To ll 2 qt (1.9 L) in 27 seconds, 120 psi maximum, 20 psi minimum
Supply Water Temperature : Minimum - 120° F (49° C)
Water Charge : 1.58 gal. (6.0 L) Approximate
Control : Electronic Control
Wash Motor : 120 VAC, Run Winding (3-7 W), Aux Winding (6-12 W)
Drain Motor : 120 VAC (15-60 W)
Fill Valve : 120 VAC, (890-1,090 W)
Heater : 120 VAC, (8-30 W)
Dispenser : Solenoid: 120 VAC, (260-300 W)
Wax Motor: 120 VAC, (1.4K-3.0K W)
AC Fan Motor : 120 VAC, (60-80 W) (some models)
DC Fan Motor : 5 VDC, (31K-41K W)
Vent Wax Motor : 120 VAC, (600-1,800 W)
Power Blast Wax Motor : 120 VAC, (600-1,800 W)
Sensors : NTC Thermistor
Water Sensor (OWI)
Switches : Door Switch (13 VDC)
Float Switch (120 VAC)
TCO/Bi-Metal : Incorporated into Control Board (Penninsula Slots)
Fuse : F9 = Small Triac Load Fuse
Wash System : Maintenance Free Hard Food Disposer
Lower Spray Arm Rotaon : 12 to 40 rpm
Upper Spray Arm Rotaon : 12 to 30 rpm
Filtraon : 4-Blade Stainless Steel Chopper
PowerBlast Available on all models
Depth : 24 3/4” (62.86 cm) without handles, 27 1/2” (69.85 cm) with handles
Height : 34 1/2” (87.63 cm) max., 33 1/2 (85.09 cm) min.
Width : 23 7/8” (60.64 cm)
Weight : 102 lbs. (46.27 kg)

GENERAL INFORMATION
Maytag Chopper Dishwashers n 1-9
Parts & Features
Figure 9
3
Parts and Features
BOTTOM RACK
TOP RACK
Upper level wash
Water feed tube
Model and serial number label
Water inlet opening
Detergent dispenser
Heating element
Upper spray arm
Silverware basket
(varies by model)
Cup shelf
(varies by model)
Overfill protection float
Lower spray arm has pressurized sprays
that provide effective cleaning.
Rinse aid dispenser reduces
spotting and improves drying.
Rack height adjusters
(on some models)
Fold down tines
(on some models)
High side shelf
(on some models)

1-10 n Maytag Chopper Dishwashers
GENERAL INFORMATION
Notes

DIAGNOSTICS & TROUBLESHOOTING
Maytag Chopper Dishwashers n 2-1
Section 2:
Diagnostics &
Troubleshooting
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n
n

2-2 n Maytag Chopper Dishwashers
DIAGNOSTICS & TROUBLESHOOTING
For Service Technician Use Only
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
nVerify the controls are in the off position so that the appliance does not start when energized.
nAllow enough space to perform the voltage measurements without obstructions.
nKeep other people a safe distance away from the appliance to prevent potential injury.
nAlways use the proper testing equipment.
nAfter voltage measurements, always disconnect power before servicing.
IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics
ESD problems are present everywhere. Most people begin to feel an ESD discharge at approximately
3000V. It takes as little as 10V to destroy, damage, or weaken the main control assembly. The new
main control assembly may appear to work well after repair is nished, but a malfunction may occur
at a later date due to ESD stress.
nUse an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted
metal in the appliance
-OR-
nTouch your nger repeatedly to a green ground connection point or unpainted metal in the
appliance.
nBefore removing the part from its package, touch the anti-static bag to a green ground
connection point or unpainted metal in the appliance.
nAvoid touching electronic parts or terminal contacts; handle electronic control assembly by
edges only.
nWhen repackaging main control assembly in anti-static bag, observe above instructions.
IMPORTANT SAFETY NOTICE — “For Technicians only”
This service data sheet is intended for use by persons having electrical, electronic, and mechanical
experience and knowledge at a level generally considered acceptable in the appliance repair trade.
Any attempt to repair a major appliance may result in personal injury and property damage. The
manufacturer or seller cannot be responsible, nor assume any liability for injury or damage of any
kind arising from the use of this data sheet.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Failure to do so can result in death or
electrical shock.
Replace all parts and panels before operating.
DANGER
Electrical Shock Hazard
Only authorized technicians should perform
diagnostic voltage measurements.
After performing voltage measurements,
disconnect power before servicing.
Failure to follow these instructions can result in
death or electrical shock.

DIAGNOSTICS & TROUBLESHOOTING
Maytag Chopper Dishwashers n 2-3
For Service Technician Use Only
Service Diagnosc Cycle
See Service Diagnostic Cycle Notes on following page.
3
Service Diagnostics Cycle
Service Diagnostics Cycle Notes:
Customer Cycle Operation
To quickly advance through customer cycles, invoke the Rapid Advance mode
by pressing HIGH TEMP - HEATED DRY - HIGH TEMP - HEATED DRY, after starting the cycle. Then, press START/RESUME to advance through cycle
intervals.
NOTE: Rapid Advance mode is automatically enabled in the Service
Diagnostic cycle but must be manually invoked in customer cycles.
24 23 22 21 19 18 17 14 13 12 11 10 987654 321
INTERVAL
CYCLE,OPTION, AND STATUS LEDs
NORMAL
HI TEMP HEATED DRY
1 HR WASH
START/RESUME
RUNNING SANITIZED CLEAN/7-SEG ALL OTHER CYCLE, OPTION, AND STATUS LEDs
NRM
NRM NRM NRMNRM NRM NRM NRM NRM NRM NRM NRM NRM HITHIT HIT HIT HIT HIT HIT HIT HIT HIT HIT HIT
DRYDRY DRY DRY DRYDRY DRY DRYDRY DRY DRYDRY
1HR 1HR 1HR 1HR 1HR 1HR 1HR 1HR 1HR 1HR 1HR
STA STASTA STA STA STA STASTA STA STA STASTA STASTA STASTA STASTA STA STA STASTA STA
RUNRUNRUNRUN RUNRUN RUNRUN RUNRUNRUNRUN RUNRUN RUNRUN RUNRUN RUNRUNRUN RUNRUN
SAN (SAN) (SAN)
CLN (CLN) (CLN) (CLN) (CLN)
ALL
NOTE 5
4,5NOTES
INTERVALTIME (min:sec)
TOTAL TIME (MAX.): 21:36
SOIL SENSING INTERVALS AND SENSOR CHECKS
APF enabled intervals (APF is OWI turbidity was >:“bulk” in previous interval.) NOTE 4
OWI (soil sensor) check intervals NOTE 4
THERMISTOR (TEMPERATURE SENSOR)
CHECK INTERVALNOTE 5
SALT LEVEL REED SWITCH/ FLOWMETER INPUT TEST NOTE 6
LOADS
PILOT RELAY VENT (NOT ALL MODELS)
FILL*
WASH MOTOR
DISPENSER (DETERGENT/RINSE AID)
DRAIN MOTOR*
HEATER
REGEN (IF PRESENT)
0:06
0:08
0:08
0:08
0:08
0:10
0:51
0:13
0:08
0:10
1:00
2:00
0:15
2:00
0:15
1:00
1:00
0:15
0:15
0:30
2:00
0:08
0:08
(APF)
OWIOWI
OWI THR
SRM
PLT PLT
PLT PLT PLTPLT PLT PLTPLT PLT PLTPLT PLTPLT
VNT
VNT VNT VNT VNT VNT VNT VNT VNT VNT VNT VNT VNT VNT
FIL FIL FIL (APF)
WSH WSH WSH WSH WSH WSH WSHWSH
DSP
(APF)
DRN DRN DRN FAN
HTR HTR
REG
2
CUSTOMER ERROR 1
CUSTOMER ERROR 2
CUSTOMER ERROR 3
CUSTOMER ERROR 4
SERVICE ERROR 1
SERVICE ERROR 2
S T A N D B Y
111 1 35
4 4 4 4
4 4 6
NOTES
20
NRM
DRY
STA
RUN
(CLN)
0:01
7
16 15
7-SEG 7-SEG 7-SEG 7-SEG 7-SEG
AC FAN MOTOR (IF PRESENT)
*APF purges are allowed in APF enabled intervals.
APF Purge: 2 drain pulses, 5 sec.FILL and DRAIN<then 5 sec.FILL.
NOTE: OWI has themistor built in (see below)
1To invoke the Diagnostics Cycle, perform the following while in
standby:
■Press START/RESUME to wake up the control panel. ■Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3 with no more
than 1 second between key presses.
■The Service Diagnostics Cycle will start when the door is closed. ■To rapid advance 1 interval at a time, press START/RESUME.
Rapid advancing may skip sensor checksas some checks
require 2 complete intervals.
NOTE: While in the Diagnostic Cycle, the Start/Resume feature is turned off (for example, Auto Resume after door interrupts) and the Start/Resume key becomes an interval advance key.
■Invoking Service Diagnostics clears all status and last run
information from memory and restores defaults
■Drain and wash motors will pulsate on and off ■Last run cycles and optionsARE returned to default. ■Reset OWI calibration values to the default values. ■Forces OWI (Optical Water Indicator) calibration cycle on next
customer cycle.
NOTE: Calibration cycle may add additional rinses prior to the final rinse to assure clear water and then calibrates the OWI during the fill at the beginning of the final rinse.
■Operating state returns to standby upon completing or
terminating the service diagnostics cycle.
■Reference “Service Diagnostics with Error Codes” section for
details.
2Turn on all LEDs immediately upon receiving the entry sequence (even
if the door is open) for 5 seconds as a display test. Turn off all LEDs for
1 second prior to reporting customer error history.
3Press HI TEMP in this interval to clear customer error history. If the Hi
Temp key does not respond, the control panel is in sleep mode. Open
and close the door to wake up the control panel, and then press HI TEMP to clear error history.
4OWI (Optical Soil Sensor) checks -
■Check OWI sensor for the presence of water during the interval
14, and turn on the Clean LED in interval 13 if water detected.
■Check OWI for the presence of air during drain interval 5and
turnon the clean LED in interval 4 if air detected.
■Check OWI sense for the presence of bulk soil during pause
interval 9; execute APF, and turn on clean LED in interval 8 if bulk
soil detected.
5Thermistor (temperature sensor) checks - turn clean LED on if
thermistor is in its normal temperature range (32°F to 167°F [0°C to 75°C]). Turn sanitized LED on if fill temperature is above 65°F (18.3°C).
6Turn on Sanitized LED in this interval to indicate that the Salt Level
Reed Switch is closed.
7Turn on Clean LED in this interval to indicate that vent current is
detected.

2-4 n Maytag Chopper Dishwashers
DIAGNOSTICS & TROUBLESHOOTING
For Service Technician Use Only
Service Diagnosc Cycle Notes

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n

n


NOTE:



n

n
n
n
n

NOTE:


n

n





 




 
n


n


n


 



 

 

Customer Cycle Operaon




NOTE:



DIAGNOSTICS & TROUBLESHOOTING
Maytag Chopper Dishwashers n 2-5
For Service Technician Use Only
Service Diagnoscs With Error Codes
Entry Sequence:
START/RESUME

NOTE:

6
Service Diagnostics with Error Codes
Entry sequence: Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3 with no more than 1 second between key presses.
NOTE: Some models have replaced the “CLEAN” LED with “COMPLETE.”
If no error, “Clean” LED stays on for 5 seconds or display shows “F-” or “E-”.
NOTE: Once error codes are extracted, refer to the “Service Error Codes” table to diagnose and correctly resolve the root cause condition.
L1
BK P4-2 P7-3
P10-1
P7-1 P4-1
N
WH
BUBU
K2 Fuse
F9
Pin 1 Pin 3
N.O.
Electronic Control Electronic Control
Tr iac
No test pad on P7-3.
Recommend using test pad on P10-1.
AC Fan (not on all models)
Use top of jumper
W2 as test point for F9.
Fan Motor
60
Ω-80Ω
120 V, 60 Hz, 12 Watts
Pilot L1 Relay
(Also see Door
Switch Circuit)
DISPLAY TEST - ALL LEDS ON
INTERVAL 28
ERROR 1 - MOST RECENT
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 27
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
ERROR 2
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5seconds
INTERVAL 26
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
ERROR 3
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 25
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
ERROR 4 - OLDEST
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 24
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
10 seconds pause Hi Temp LED will be on
INTERVAL 23
Press Hi Temp key to clear errors. Hi Temp LED will blink twice to indicate errors have been cleared.
Service Diagnostics Cycle
INTERVAL 22-3
Turns on loads and checks sensors.
SERVICE CYCLE ERROR 1
A tone will play when service error code 1 is displayed
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 2
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
SERVICE CYCLE ERROR 2
SHOW FUNCTION CODE PAUSE SHOW PROBLEM CODE PAUSE
Repeat 3times unless advanced
by Start key.
Count the Clean LED flashes 2 seconds Count Clean LED flashes 5 seconds
INTERVAL 1
OR ON DISPLAY MODELS
Read “F#” on Display 0.5 seconds Read “E#” on Display 1 second
SERVICE CYCLE ERROR 2 INTERVAL 1
INTERVAL 2
INTERVAL 18-3
INTERVAL 19
INTERVAL 20
INTERVAL 21
INTERVAL 22
INTERVAL 23
INTERVAL 24
INTERVAL 1
INTERVAL 2
INTERVAL 18-3
INTERVAL 19
INTERVAL 20
INTERVAL 21
INTERVAL 22
INTERVAL 23
INTERVAL 24

2-6 n Maytag Chopper Dishwashers
DIAGNOSTICS & TROUBLESHOOTING
For Service Technician Use Only
Service Error Codes
FUNCTION
CODE
PROBLEM
CODE
CAUSES WHAT TO CHECK
 









 






 



NOTE






































DANGER
Electrical Shock Hazard
Only authorized technicians should perform
diagnostic voltage measurements.
After performing voltage measurements,
disconnect power before servicing.
Failure to follow these instructions can result in
death or electrical shock.