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SiAF332111E
Troubleshooting by Error Code
Part 6 Service Diagnosis
277
Note(s)
Reference
1. RXMQ6AR: outdoor unit main PCB (A1P)
RXMQ8AR: inverter PCB (A3P)
CHECK 4
Refer to page 340.
A
NO
YES
The
insulation
resistance of the
compressor is 100 k
or
less to ground.
Replace the compressor
(M1C).
YES
The internal
wiring of the
compressor coil is
defective.
Replace the compressor
(M1C).
YES
NO
Replace the relevant
PCB
(
1)
.
NO
Power OFF
CHECK 4
Is the power
transistor normal?
YES
The difference
between high and low pressure
before restarting is less than
0.2 MPa.
Defective equalization of
the refrigerant line.
NO
YES
L8
recurs.
Continue operation.
NO
Connect the compressor lead
wires and restart.
Power OFF
YES
Restarting the
system results in the
recurrence of the
error.
Continue operation.
NO
Replace the inverter PCB (A3P).
RXMQ8AR Only
Diagnose the
compressor (M1C).
Summary of Contents for VRV S RXQ4/5ARV1
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ4 5ARV1 RXMQ6ARV1 RXMQ8 10 12ARY1 SiAF332111E...
Page 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Page 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Page 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Page 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...