Troubleshooting by Error Code
SiUS331604E
193
Service Diagnosis
Troubleshooting
NO
NO
NO
YES
YES
YES
NO
YES
CHECK 4
CHECK 3
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is the
power supply
voltage between L1 and L2,
L2 and L3, and L1 and L3 within
208 V –10% to 230 V
+10%?
Is the
measured voltage greater or equal
to 220-240 VDC?
Check the inverter power transistor.
Is the power transistor failing?
Is the resistance greater than
the standard?
Measure voltage b and - of
the electrolytic capacitor (C+, C-)
when the compressor is operating.
Calibrate the power voltage.
If L2 and Phase N are disconnected,
replace the distribution box.
Replace the fan motor.
Monitor voltage.
(Instantaneous voltage drop)
Replace the fan PCB (A4P, A5P).
Replace the outdoor main PCB (A1P).
Check the PCB condition.
In case of a serious failure,
compressor failure may lead to PCB
failure. Therefore, failure would recur
when replacing the PCB. To avoid
this situation, recheck whether the
compressor is grounded or whether
the wire is broken. Moreover, check
the compressor after replacing the
PCB.
CHECK 3
CHECK 4
Summary of Contents for VRV IV-S RXTQ-TAVJU Series
Page 1: ...Service Manual SiUS331604E RXTQ36 48 60TAVJU Heat Pump 60 Hz...
Page 254: ...Wiring Diagrams SiUS331604E 241 Appendix RXTQ48TAVJU 3D100496A...
Page 255: ...SiUS331604E Wiring Diagrams Appendix 242 RXTQ60TAVJU 3D100497A...
Page 260: ...Wiring Diagrams SiUS331604E 247 Appendix FXEQ07 09 12 15 18 24PVJU C 3D098557...
Page 267: ...SiUS331604E Wiring Diagrams Appendix 254 FXTQ12 18 24 30 36 42 48 54PAVJU 3D065036G...
Page 270: ...Wiring Diagrams SiUS331604E 257 Appendix VAM1200GVJU 3D073270C...
Page 271: ...Revision History Month Year Version Revised contents 06 2016 SiUS331604E First edition...
