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SiUS331708EA
Troubleshooting by Error Code
Service Diagnosis
204
4.33 Inverter Compressor Motor Lock
Error Code
E5
Applicable
Models
All outdoor units
Method of Error
Detection
PCB takes the position signal from UVW line connected between the inverter and compressor, and
the error is detected when any abnormality is observed in the phase-current waveform.
Error Decision
Conditions
This error will be output when the inverter compressor motor does not start up even in forced
startup mode.
Supposed
Causes
Inverter compressor lock
High differential pressure (0.5 MPa (72.5 psi) and above)
Incorrect UVW wiring
Defective PCB
Stop valve is not opened
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is the stop valve open?
Check the compressor cable
for disconnection and flaws.
NO
The compressor cable
has a defect.
YES
YES
Are wire
connections made
to phases U, V, and W in the
proper order and
manner?
NO
YES
NO
Disconnect the cable from the
compressor, and then check
the compressor for the
insulation resistance.
Onsite causes.
Open the stop valve.
Replace the cable, and
then securely connect the
connectors.
Make wire connections
without a mistake.
Power OFF
U
V
W
A
Connect correctly.
NO
YES
Does wire follow
the wiring diagram?
Go to the next page.
Summary of Contents for RXSQ24TAVJU
Page 1: ...Service Manual SiUS331708EA RXSQ24 36 48 60TAVJU Heat Pump 60 Hz...
Page 290: ...Wiring Diagrams SiUS331708EA 277 Appendix RXSQ48TAVJU 3D109546A...
Page 291: ...SiUS331708EA Wiring Diagrams Appendix 278 RXSQ60TAVJU 3D109547A...
Page 295: ...SiUS331708EA Wiring Diagrams Appendix 282 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 298: ...Wiring Diagrams SiUS331708EA 285 Appendix FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 300: ...Wiring Diagrams SiUS331708EA 287 Appendix FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU 3D110467B...
Page 301: ...SiUS331708EA Wiring Diagrams Appendix 288 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Page 302: ...Wiring Diagrams SiUS331708EA 289 Appendix FXHQ12 24 36MVJU 3D048116C...
Page 303: ...SiUS331708EA Wiring Diagrams Appendix 290 FXAQ07 09 12 18 24PVJU 3D075354C...
Page 309: ...SiUS331708EA Wiring Diagrams Appendix 296 VAM1200GVJU 3D073270D...