48
F238006
Section 4 Troubleshooting
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
AC Drive Fault Codes and Troubleshooting Information
Bulletin
160
Bulletin
1305
Bulletin
1336
Fault
Description
Corrective Action/Remarks
02
Motor Temp
Fault
The motor thermal switch
path is open.
Motor temperature high. Check for:
ambient air, cooling fan blockage or
operation, break in switch wire path (not
on all machines).
03
03
03
Power Loss
Fault
DC Bus voltage remains
below 85% nominal for
longer than 0.005 seconds.
Monitor incoming AC line for low
voltage or line power interruption.
04
04
04
Under
Voltage
Fault
DC Bus voltage fell below
minimum.
Monitor AC incoming AC line for low
voltage or line power interruption.
05
05
05
Over Voltage
Fault
DC Bus maximum voltage
exceeded.
Monitor the AC line for high line voltage
or transient conditions. High voltage can
result from motor regeneration. Buck
transformer may be required.
06
06
06
Motor Stall
Motor has stalled. Motor
load is excessive
Check motor wiring and connection
terminals. Check wash basket freedom of
movement and excess belt tension.
07
07
07
Motor
Overload
Fault
Internal electronic overload
trip. Excessive motor load
exists.
Check motor wiring and connection
terminals. Check wash basket freedom of
movement and excess belt tension.
08
08
08
Over
Temperature
Fault
Excessive heat detected by
heatsink transducer.
Clear blocked or dirty heatsink fins.
Check ambient temperature. Check for
blocked or nonoperating fan.
10
10
Serial Fault
Drive lost communication
with controlling device.
HIM removed while power applied, cycle
power to clear.
12
12
12
Overcurrent
Fault
Overcurrent detected in
instantaneous hardware trip
circuit.
Check short circuit at the controller
output or excessive load conditions at
motor.
22
22
22
Controller
Reset Fault
Stop input not present.
Check stop input into control terminal
board. Close door and ensure any jumpers
are placed correctly.
32
32
32
EEPROM
Fault
EEProm has invalid data.
Consult the factory for further
instructions.
33
33
33
Max Retries
Fault
Controller failed to reset
fault within the number of
retries.
Fault exists that must be corrected before
further operation. Check “Fault Buffer 1”
on 1305 and 1336 for specific fault that
triggered max retries fault.
38
38
38
Phase U
Fault
Phase-to-ground fault
detected between controller
and motor in Phase U.
Check wiring between the drive and
motor. Check for grounded phase.
39
39
39
Phase V
Fault
Phase to ground fault
detected between controller
and motor in Phase V.
Check wiring between the drive and
motor. Check for grounded phase.
40
40
40
Phase W
Fault
Phase to ground fault
detected between controller
and motor in Phase W.
Check wiring between the drive and
motor. Check for grounded phase.
