SiUS091601EA
Troubleshooting for FTX, FVXS Series
Part 6 Service Diagnosis
134
Troubleshooting
Correct the power supply.
Replace the outdoor
unit PCB (main PCB).
Check for such factors for a
long term.
(R22445)
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
NO
YES
YES
YES
YES
Reconnect the harness.
Check the power supply voltage.
Check the connection of the
compressor harness.
(Precaution before turning on the power again)
Make sure the power has been off for at
least 30 seconds.
Disturbance factors
Noise
Power supply distortion
Turn on
the power. System
restarted? (Repeat a few
times.)
Loose or disconnected?
NO
NO
Replace the outdoor fan motor
and the outdoor unit PCB
(main PCB).
Does the
outdoor fan rotate
smoothly?
Is the
voltage fluctuation
within ±10% from the
rated value?
Summary of Contents for FDMQ12RVJU
Page 18: ...SiUS091601EA 13 Part 2 Specifications 1 Specifications 14 Part 2 Specifications ...
Page 198: ...Check SiUS091601EA 193 Part 6 Service Diagnosis 18 24 class R24538 1 2 3 4 Multimeter ...
Page 201: ...SiUS091601EA Check Part 6 Service Diagnosis 196 18 24 class R24539 DC DC W V U ...
Page 229: ...SiUS091601EA Piping Diagrams Part 8 Appendix 224 RXL15QMVJU RXL18UMVJU 3D100007 3D123368 ...
Page 230: ...Piping Diagrams SiUS091601EA 225 Part 8 Appendix RXL24UMVJU 3D107985A ...