Troubleshooting by Error Code
SiME332106E
248
Part 6 Service Diagnosis
The
outdoor unit main
PCB has damage.
The
system enters
standby mode before the
outdoor fan starts
rotating.
The
system enters
standby mode before
completing the startup
operation of the
compressor.
The error
U2
recurs.
NO
NO
YES
YES
NO
YES
NO
YES
Replace the outdoor unit
main PCB (A1P).
Check for wirings.
Turn ON the power supply,
and then press the ON button.
Replace the outdoor unit
main PCB (A1P).
If the outdoor unit main
PCB gets severely
damaged, the
compressor and the fan
motor may have been
damaged.
Replace the outdoor unit
main PCB (A1P).
If the outdoor unit main
PCB gets severely
damaged, check for the
compressor.
Continue operation.
The error could have
resulted from causes such
as instantaneous power
failure.
A
Is the power
transistor normal?
NO
Replace the outdoor unit
main PCB (A1P).
CHECK 4
The insulation
resistance of the fan
motor is less
than 1 M
.
NO
YES
Replace the fan motor.
If the motor gets severely
damaged, the outdoor
unit main PCB (A1P)
should also be replaced.
