Daikin RXQ12AHR Service Manual page 257

SiAF341904E
Reference
CHECK 4 Refer to page 290.
Part 6 Service Diagnosis
A
Refrigerant is
stagnated. (The unit is
YES
out of power supply for
more than 6
hours.)
NO
Is the
insulation
resistance of the NO
relevant compressor
100 kΩ or
more?
YES
The internal
YES
wiring of the compressor
coil is defective.
NO
CHECK 4
NO
Is the power
transistor normal?
YES
Troubleshooting by Error Code
Solve the refrigerant stagnation.
(Power should be supplied for more
than 6 hours.)
Replace the compressor.(#1)
#1
RXQ6-14A: M1C
RXQ16-20A: M1C, M2C
Replace the compressor.(#1)
Replace the inverter PCB.
RXQ6-14A: A3P
RXQ16-20A: A3P, A6P
Recheck for the compressor and the
refrigerant system.
251