Maytag MAH8700A Technical Information Download Page 7

Troubleshooting Procedures 

 

!

WARNING

 

To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless  
testing requires power. 
 

June 2006 

16026882 

©2006 Maytag Services 

 

RPL 16026127

 

#

IN

 

 

Service Mode 

Service Mode

 enables service personnel to verify the 

operation of the washing machine and diagnose problems. 

Service Mode

 can be entered in the middle of any wash 

cycle without interrupting the cycle.

 

While in 

Service 

Mode

, the technician can cancel the current cycle, set a 

continuous running mode, start a variety of special service 
tests and view diagnostic displays. 

 

Enter / Exit Service Mode 

To enter 

Service Mode

 press the 

Chime

 and 

Extra Rinse

 

keys for 3 seconds or until the control beeps. 

NOTE:

 The washer must be ‘ON’ before 

Service Mode

 

can be entered. 

The motor speed will be displayed when started (motor not 
running display will be “

0

”). The present state of the 

machine will not be changed (i.e., the current cycle in 
progress will not be interrupted and only the display will 
change). All LED’s will be turned ‘OFF’ except the 

Door 

Lock

 LED; it will continue to display the condition of the 

door lock. 
To exit 

Service Mode

1) Press 

Chime

 

and 

Extra Rinse

 keys for 3 seconds 

again, or 

2) Press 

Power Off 

button, or 

3) Unplug the machine. 
To pause while in 

Service Mode

Pressing the 

Rotary Cycle Selector 

knob

 

while running a 

test will pause the individual test. 
 

Access Service Tests and Diagnostic Features while in 
Service Mode. 

The following table summarizes special tests and features 
available in 

Service Mode

, along with methods of 

activation and cancellation. A more detailed description of 
each test can be found in the text following the table. 
Reference the text or symbol indicated in the “Test or 
Display” column, with the text and symbols indicated in the 
text following the quick reference table for a more detailed 
explanation. 
 

Test or Display 

To Start 

(or Hold) 

To Cancel  

(or resume) 

Quick  
Spin Test 

Press 

Delay  

and

 

Rinse & Spin

 

Press 

Delay 

and 

Rinse & Spin

 or 

press 

Power Off

  

Hold 

Quick 

Spin Test

 

step 

Press 

Rotary Cycle 

Selector 

(during test) 

Press 

Rotary 

Cycle Selector

  

Fast 
Time- 
Down 

Test / 

Advance 

to next step

 

Press 

Wash/Rinse 

Temp

 to start test. 

Press 

Wash/Rinse 

Temp

 during cycle to 

advance. 

Press 

Power Off

 

Test or Display 

To Start 

(or Hold) 

To Cancel  

(or resume) 

Quick 
Service 
Cycle 

Press 

Wash/Rinse 

Temp 

and

 Soil Level

 

Press 

Power Off

 

(also exits 

Service Mode

Hold 

Quick 

Service Cycle 

Step

 

Press 

Rinse & Spin

 

and 

Spin Only

 

together 

Press 

Rinse & 

Spin

 and 

Spin 

Only

  

 
 
 

 
LED/Switch 
Test 

Press 

Delay

 for 3 

seconds (then 
individual buttons to 
test) Turn 

Rotary 

Cycle Selector

 

clockwise, the LED’s 
around it will be 
toggled. Turn 

Rotary 

Cycle Selector

 

counterclockwise, the 
7-segment LED’s 
toggle. Press 

Rotary 

Cycle Selector

, all of 

the LED’s around the 

Rotary Cycle 
Selector

 will be 

toggled. 

Press 

Power Off

 

twice after 
starting test 

Board 
Input 
Test 

Press 

Spin Only 

Press 

Spin Only

 

Board 
Output 
Test / 

System Check

 

Press 

Spin Speed  

Press 

Power 

Off. 

 

 
 
 
Diagnostic 
Code Display 
(Initial) 

Press 

Rinse & Spin

 – 

displays ‘

d

’ 

Press 

Rinse & 

Spin

 again 

All Diagnostic 
Codes 

Rotate 

Rotary Cycle 

Selector

 either 

direction 

N/A  

Cycle Count 
No. for 
Diagnostic 
Code 

Press and hold 

Rotary 

Cycle Selector

, while 

diagnostic code is 
displayed 

Release 

Rotary 

Cycle Selector 

(returns to 
diagnostic code 
display) 

Clear All 
Diagnostic 
Codes 

Press 

Delay

 and 

Chime

 together while 

displaying diagnostic 
codes 

N/A

 

Display 
Software 
Version 

Press 

Soil Level

. Press 

Soil 

Level

Cycle Count 

Press 

Chime 

N/A 

 

Summary of Contents for MAH8700A

Page 1: ...ION All safety information must be followed as provided in Service Manual 16026126 WARNING To avoid risk of electrical shock personal injury or death disconnect power to washer before servicing unless testing requires power Model MAH8700A Power Source 120VAC Amperage 10 Amp Frequency 60 Hz Cabinet Dimensions Height 38 Width 27 Depth 30 75 Features Wash Cycles 26 Water Temperatures 6 Water Level In...

Page 2: ...4 and Pin 3 of CN8 0V DC or 3 75V DC Motor Unplug harness connector and test from wire insertion side of connector Pin 1 and Pin 2 of CN9 Pin 1 and Pin 3 of CN9 Pin 2 and Pin 3 of CN9 Any 2 Pins 1 2 3 on Motor Connector 3 0 ohms 3 0 ohms 3 0 ohms 3 0 ohms Drain Pump During drain check voltage at Pin 1 of CN5 and Pin 6 of CN10 120V AC Water Valves Check voltage at Pin 1 and Pin 1 2 4 of CN10 Unplug...

Page 3: ...r to washer before servicing unless testing requires power June 2006 3 16026882 2006 Maytag Services RPL 16026127 1 2 3 CN10 CN9 CN3 CN11 CN6 CN7 CN5 RY9 CN8 9 1 1 5 1 4 4 1 8 5 3 1 3 1 Motor Normal resistance is approximately 3 0 Ω between any 2 pins 1 2 or 3 on motor t Machine Control Board MEMS Sensor 1 2 2 1 ...

Page 4: ...zation may force door open No Tumble Start normal cycle with an empty machine and allow a fill to check tumble See Board Output Test or Quick Spin Test Before test make sure that the tumbler is empty Check for loose connections at machine control board pressure switch motor tach harness and motor control Check motor windings resistance See Component Testing Procedures At CN9 pins 1 3 3 0 ohms Pins...

Page 5: ...ll Not Drain Check if temperature inside the drum is higher than 50 C 122 F If there is no problem with temperature check wiring of machine control board and door lock switch Drain manually by removing drain hose clamp Display shows L0 Press Power Off button to turn off the washer and unplug and reconnect washer Press any key to turn ON the washer If L0 is displayed machine control board and door ...

Page 6: ... a beep is heard When display shows End only the Power Off button will function Press Power Off and make new cycle selections Consumer Information Codes If the consumer observes codes on display see table below LED Display Description Diagnostic code nd The water level fails to drop below the Low Water level reset within 15 minutes before a spin begins 1 LED Display Description Diagnostic code LO ...

Page 7: ... be found in the text following the table Reference the text or symbol indicated in the Test or Display column with the text and symbols indicated in the text following the quick reference table for a more detailed explanation Test or Display To Start or Hold To Cancel or resume Quick Spin Test Press Delay and Rinse Spin Press Delay and Rinse Spin or press Power Off Hold Quick Spin Test step Press...

Page 8: ...l detects proper water level During this time tumble at 45 rpm for 5 seconds in a clockwise direction pause for 2 seconds tumble at 45 rpm for 5 seconds in a counterclockwise direction pause for 2 seconds Continue pattern until the water level is detected Minimum time for this segment to be 5 seconds After water height is achieved continue tumble pattern for another 14 seconds If the washer is equ...

Page 9: ... will be displayed UC if balanced U0 if unbalanced U0 will be displayed during the time when the machine is correcting for the unbalance e g slowing down to redistribute the load or to get to a lower spin speed Once the situation has been corrected i e the load has begun tumbling or the lower speed has resulted in an acceptable amount of balance UC will once again be displayed When the Delay key i...

Page 10: ...the output When activated the machine will tumble for 5 seconds in the CW direction pause for 2 seconds tumble in the CCW direction for 5 seconds pause for 2 seconds repeating this pattern until Delay key is pressed again to turn OFF the tumbling Note All tumble speeds are assumed to be 45 rpm Pressing the Chime key will unlock the door and turn ON all the LED s above the Chime key This output wil...

Page 11: ...clear the diagnostic codes list press the Delay and Chime keys for 3 seconds while viewing the list Diagnostic Codes Diag Code Description Trigger Action to be taken 1 No Drain The water level fails to drop below the Low Water level reset within 15 minutes before a spin begins Displays nd See Will Not Drain Troubleshooting Procedures 2 The door fails to unlock Door failed to unlock after 3 attempt...

Page 12: ... Not Used 29 Sump thermistor failure Optional Abnormal high low temp or ohm resistance seen Displays tE Loose or pinched wires Bad sump thermistor 30 33 Not Used Diag Code Description Trigger Action to be taken 2E Motor Drive failure Locked Hall sensor fault Machine control is attempting to drive the motor but is not seeing any tach response Visual check shows motor is not moving Display E3 Evalua...

Page 13: ...ectrical shock personal injury or death disconnect power to washer before servicing unless testing requires power June 2006 13 16026882 2006 Maytag Services RPL 16026127 NOTE Series 10 11 do not have connector CN11 or MEMS PCB originally Series 12 ...

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