SiUS092230EA
Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis
177
7.12 Compressor Sensor System Abnormality
Error Code
H0
Method of Error
Detection
The system checks the DC current before the compressor starts.
Error Decision
Conditions
The voltage converted from the DC current before compressor start-up is out of the range 0.5 ~
4.5 V.
The DC voltage before compressor start-up is below 50 V.
Supposed
Causes
Broken or disconnected harness
Defective outdoor unit PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
(R24613)
YES
Turn off the power. Then, turn on
the power to restart the system.
YES
NO
Replace the harness.
Replace the outdoor unit
PCB (main PCB).
Is the harness broken?
Restart
operation and error displayed
again?
Check the (relay) harness for the
compressor.
Not a malfunction.
Keep observing.
Summary of Contents for RX-W Series
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Page 207: ...SiUS092230EA Check Part 6 Service Diagnosis 201 15 18 24 class R25105 1 2 3 4 Multimeter ...
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Page 239: ...SiUS092230EA Piping Diagrams Part 8 Appendix 233 RX24WMVJU9 3D141502 ...