Daikin Aurora Series Service Manual page 257

SiUS341802E
Service Diagnosis
A
Refrigerant is
melting (No power
applied for a period of 6
hours or more)
NO
Is the
insulation
resistance of the
relevant compressor
100 kΩ or
more?
YES
There is
wiring disconnection in
the compressor.
NO
CHECK 4
Is the power
transistor normal?
YES
CHECK 4 Refer to page 286.
YES
NO
YES
NO
Troubleshooting by Error Code
Eliminate the melting state of
refrigerant.
Replace the compressor.
Replace the compressor.
Replace the inverter PCB.
RXLQ-TATJU,
RXLQ-TAYDU: A3P
RXLQ-TAYCU,
RXYQ-TAYCU: A4P
Recheck for the compressor and the
refrigerant system.
244