Maytag MAH2440AW series, Сервисная инструкция

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Troubleshooting Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.
12 16026119 Rev. 0 ©2005 Maytag Services
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
Temperature
and
Rinse
keys, then press the
Power On/Off
key.
NOTE: The washer must be on before Service Mode
can be entered.
The model number of the washer will be displayed for
one second followed by “t1”.
To exit:
1) Press
Off
, or
2) Unplug the machine.
Pressing the
Start/Pause
button while running a test
will pause the individual test, while remaining in
Service Mode.
Component Test
While in Service Mode, pressing the
Start/Pause
button will cycle the Pre Valve on/off, Cold Valve
on/off, Hot Valve on/off, Drain Pump on/off, Motor
clockwise (50rpm), Motor counterclockwise (50rpm),
Heater on/off.
Thermistor Test
While in Service Mode, pressing the
Delay Start
( Two
times) followed by the
Start/Pause
button will display
the temperature inside the tub.
Unbalance Test
While in Service Mode, pressing the
Delay Start
(Three times) followed by the
Start/Pause
button will
display the unbalance value.
Abbreviated White/Cottons Cycle Test
While in Service Mode, pressing the
Delay Start
(Four times) followed by the
Start/Pause
button will
start an abbreviated White/Cottons cycle.
White/Cottons Cycle Test
While in Service Mode, pressing the
Delay Start
(Five
times) followed by the
Start/Pause
button will start a
White/Cottons cycle.
Spin Test
While in Service Mode, pressing the
Delay Start
(Six
times) followed by the
Start/Pause
button will start a
spin test. Washer will spin up to 1400 rpm.
Rinse And Spin Test
While in Service Mode, pressing the
Delay Start
(Seven times) followed by the
Start/Pause
button will
start a rinse and spin test. Washer will rinse and spin
up to 1400 rpm.
Board Output Test
To test the EEPROM press and hold the
Rinse
,
Prewash
and
Delay Start
followed by the
Power
On/Off
switch. All LED’s will light. If test is passed
display will show “
Eg
” or “
Et
”.
Press the
Temperature
key (Once) followed by the
Start/Pause
button will cycle the following:
Component Display Cycle Time
Pre Valve 95C LED 0.3sec
Cold Valve 60C LED 0.3sec
Hot Valve 40C LED 0.3sec
Drain Pump 30C LED 0.3sec
Heater Cold LED 0.3sec
Motor Output Test
Enter the Board Output Test then press the
Temperature
key (Twice) followed by the
Start/Pause
button to test the motor. Motor will rotate
Counterclockwise stop then rotate clockwise and turn
off.
LED/Switch Test
Enter the Board Output Test then press the
Temperature
key (Three times) followed by the
Start/Pause
button to test the LED’s.
Button Selection Display
Start/Pause All cycle LED’s
Temperature
Wash, 95C, 60C, 40C,
30C, Cold LED’s.
Rinse Rinse 321 LED’s.
Spin rpm
Spin, 1400, 1200, 800,
400, Rinse Hold LED’s.
Prewash
Door Lock, 7-Segment,
Prewash LED.
Delay Start
Child Lock, Delay Start
LED’s
Diagnostic Codes
When the washer generates a diagnostic code an
audible signal will play for 5 seconds along with the