Amana NFW7200TW, Техническая информация

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11
Troubleshooting
Diag.
Code
Description Trigger
Action to be
taken
34
40-90
System Relay
failure
Not Used
35 Not Used
Display " Sr ".
Replace
machine
control board.
Machine control
does not see relay
open when it
should.
3E
Motor failure
(Over current)
Displays "3E".
Check the
motor
windings, the
speed
sensor, wiring
connections,
or Control
Board.
Over Current is
detected. Motor
won't turn.
91
Voltage for
motor control
bus is over
specified limit
Display " 2E ".
Replace motor
control board.
Voltage for motor
control bus is over
specified limit
92
Voltage for
motor control
bus is under
specified limit
Display " 2E ".
Replace motor
control board.
Voltage for motor
control bus is
under specified
limit
36
Heater relay
failure.
Display " Hr ".
Replace
machine
control board.
Heater Relay
Check signal not
sensed.
Diag.
Code
Description Trigger
Action to be
taken
18
26-28
Detected door
lock switch
open during
cycle when not
expected.
Not Used
19-21
Not Used
23-24
Not Used
Check for
loose wire
connections
Clear the
diagnostic
code and
recheck; if
reoccurs,
perform
Diagnostic
Motor/Machine
Control Board
test Check for
faulty motor
relay on the
machine
control board.
Open door lock
switch with motor
running.
22
Door/lid switch
seen open
during cycle
(when not
paused).
Go to " Door
Lock Test "
Troubleshooting
Section
Door switch is
read as open and
the door locked
switch is read as
locked.
29
Sump
thermistor
failure
(Optional)
Displays " tE ".
- Loose or
pinched
wires
- Bad sump
thermistor
Abnormal high/low
temp or ohm
resistance seen
2E
Motor Drive
failure
(Locked, Hall
sensor fault)
Display “ E3 ”
Evaluate wire
harness for
loose or
unhooked
connections. If
machine has
separate motor
control,
perform self
diagnostic
motor test. See
"
Motor
Control Board
Output Test
"
Machine control is
attempting to drive
the motor but is
not seeing any
tach response.
Visual check
shows motor is
not moving.
25
Motor tach
signal exists
without motor
running.
Displays
"
bE ". Replace
motor control
board.
Tach signal exists
without torque
commanded or
when not
expected
(Abnormal
condition only).
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless
testing requires power.
30-33
Not Used
Exit Service Mode
To exit: 1) Press Chime and Extra Rinse keys for 3
seconds again, or 2) press Off , 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
Off key will completely exit Service Mode. If a cycle
is running, cancel the cycle. Pressing the Rotary
Selector key while running a test will pause the
individual test, while remaining in Service Mode. A
power loss during Service Mode will cancel this mode.