Specifications

Troubleshooting by Remote Controller SiBE341027
144 Service Diagnosis
Troubleshooting
Note:
*1. Disconnect the connector once, then reconnect it and check that it is securely connected.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace it with a correct PCB.
Properly connect the connectors.
Replace the INV. compressor
(M1C).
Replace the fan motor.
NO
NO
YES
YES
NO
YES
YES
NO
YES
NO
NO
NO
YES
The “ LC ” error recurs.
Not the “ LC ” error. Check the error
code again.
Replace the main PCB (A1P).
Replace the inverter PCB (A4P).
YES
Are the connectors
of the main PCB,
and inverter PCB all
securely connected?
(*1)
Is the type of
the inverter
PCB correct?
The INV. compressor
has insulation
resistance of not more
than 100kΩ.
The fan motor has
insulation resistance
of not more than
1MΩ.
The micro-computer
normal monitor (green) of
the main PCB (A1P) is
blinking.
The micro-computer
normal monitor (green) of
the inverter PCB (A4P) is
blinking.
Continue the operation.
(It is supposed that the error
results from causes such as
instantaneous power failure.)