Daikin REYQ-TA Series Service Manual page 252

Troubleshooting by Error Code
239
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 278.
YES
NO
YES
NO
SiUS371614E
Eliminate the melting state of
refrigerant.
Replace the compressor. ( 1)
1
REYQ72TA: M1C
REYQ96-168TA: M1C, M2C
Replace the compressor. ( 1)
Replace the inverter PCB.
REYQ72TA: A3P
REYQ96-168TA: A3P, A6P
Recheck for the compressor and the
refrigerant system.
Service Diagnosis