Maytag MAH8700A - Manual (Page 12)

Troubleshooting Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless
testing requires power.
16026882 12 June 2006
RPL 16026127 ©2006 Maytag Services
Diag.
Code
Description Trigger Action to be
taken
15 Stuck Key
A key is sensed
to be pressed
more than 30
seconds, the key
will be assumed
to be stuck.
Display "E2". See
LED/Switch Test.
Check connection
of keypad to
control board.
Replace console if
necessary.
17
Door/Lid
switch was
not seen
open since
the last two
final spins
The door has not
been opened
after two
complete wash
cycles. Door
switch was not
seen open since
the last two final
spins.
Will display "od". If
door open sensed,
error will clear.
Check door lock.
18
Detected
door lock
switch open
during cycle
when not
expected.
Open door lock
switch with
motor running.
Check for loose
wire connections.
Clear the
diagnostic code
and recheck; if
reoccurs, see
Door Lock Test
.
Check door lock
system. See
Board Output
Test
. Check the
output voltage of
door lock coil. If
normal, change
door lock switch. If
not normal, change
Machine Control
Board.
19-21 Not Used
22
Door/lid
switch
detected
open during
cycle (when
not paused).
Door switch is
read as open
and the door
locked switch is
read as locked.
See Door Lock
Test
“Troubleshooting
Procedures”.
23-24 Not Used
25
Motor tach
signal exists
without motor
running.
Tach signal
exists without
torque command
or when not
expected.
Displays "bE".
Replace Motor
Control Board.
26-28 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”
Evaluate wire
harness for loose
or unhooked
connections. If
machine has
separate motor
control, perform
self diagnostic
motor test. See
“Board Output
Test
”.
34
System
Relay failure
Machine control
does not see
relay open when
it should.
Display "Sr".
Replace machine
control board.
35 Not Used
3E
Motor failure
(Over
current)
Over Current is
detected. Motor
won't turn.
Displays
"3E".Check the
motor windings,
the speed sensor,
wiring connections,
or Control Board.
40-49 Not Used
91
Voltage for
motor control
bus is over
specified limit
Voltage for motor
control bus is
over limit
Display
"2E".Replace
Machine Control
Board.
92
Voltage for
motor control
specified limit
Voltage for motor
control bus is
under specified
limit.
Display
"2E".Replace
Machine Control
Board.
Exit Service Mode
To exit:
1) Press Chime and Extra Rinse keys for 3
seconds again, or
2) Press the Power Off key, or
3) Unplug the machine. After five (5) minutes of
inactivity (user key presses) in Service Mode,
the machine will exit the Service Mode and
resume normal operations. Pressing the Power
Off
key will completely exit Service Mode. If a
cycle is running, cancel the cycle. Pressing the
Rotary Selector
knob while running a test will
pause the individual test, while remaining in
Service Mode
. A power loss during Service
Mode will cancel this mode.