Table of Contents
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Maytag Chopper Dishwashers
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
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
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
TABLE OF CONTENTS
Maytag Chopper Dishwashers
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Table of Contents
Troubleshooting
Need help?
Do you have a question about the MDB series and is the answer not in the manual?
Questions and answers
how to remove control block from mount. washer #mdb8959skbo
To remove the control block from the mount on Maytag washer model MDB8959SKBO (earlier models):
1. Unplug the dishwasher or disconnect power.
2. Remove the outer door panel (refer to page 4-4 in the manual).
3. Disconnect harnesses from the control board.
4. Depress the locking tab (see Figure 3 in the manual).
5. Slide the electronic control to the left to unhook the tabs on the back of the control from the slots in the door bracket (see Figure 4 in the manual).
This answer is automatically generated