Daikin VRV RXYMQ-A Series Service Manual page 235

SiME332106E
Note(s)
1. RXYMQ4AVMK: outdoor unit main PCB (A1P)
Reference
CHECK 4 Refer to page 275.
Part 6 Service Diagnosis
From the previous page
(Startup failure in aging
operation)
Refrigerant
is stagnated.
(The unit is out of power
supply for more than
6 hours.)
NO
Is the
insulation
resistance of the
compressor 100 k:
or more?
YES
The internal
wiring of the compressor coil is
defective.
NO
CHECK 4
Is the power
transistor normal?
YES
RXYMQ4-6AYFK: inverter PCB (A3P)
YES
NO
YES
NO
Troubleshooting by Error Code
Solve the refrigerant stagnation.
(Power should be supplied for more
than 6 hours.)
Replace the compressor (M1C).
Replace the compressor (M1C).
Replace the relevant PCB ( 1 ).
Recheck for the compressor and the
refrigerant system.
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