Maytag MAH9700AW* - Manual (Page 13)

Troubleshooting Procedures
! WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.
©2005 Maytag Services 16025909 Rev. 0 13
LED
Display
Description Diagnostic
code
dL
Open door lock
switch with motor
running.
18
dS
Door switch is
read as open and
the door locked
switch is read as
locked.
22
bE
Motor tach signal
exists without
motor running.
25
tE
Abnormal
high/low temp or
ohm resistance
seen.
29
E3
Machine control
is attempting to
drive the motor
but is not seeing
any tach
response. Visual
check shows
motor is not
moving. (Locked,
Hall Sensor fault)
2E
Sr
System Relay
failure.
34
Hr
Heater Relay
failure.
36
3E
Over Current is
detected. Motor
won't turn.
3E
2E
Voltage for motor
control bus is
over specified
limit.
91
2E
Voltage for motor
control bus is
under specified
limit.
92
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 three 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:
1) Press Chime and Extra Rinse keys for 3 seconds
again, or
2) Press Off, or
3) Unplug the machine. Pressing the Rotary Selector
knob while running a test will pause the individual
test, while remaining in Service Mode.
The following table summarizes special tests and
features available in Service Mode, along with
methods of activation and cancellation.
Access Service Tests and Diagnostic Features
while in Service Mode.
Test or Display
Press LED to
Start
Press LED to
Cancel
Quick Spin
Test
Press Delay
Start and
Rinse&Spin Press Delay
start and
Rinse&Spin
Press Off (exits
Service Mode)
Hold Quick
Spin Step
(holds
predefined
RPM)
Press Rotary
Selector
(during test) Press Rotary
Selector
(cancels hold &
resumes next
step)
2
1