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SiBE12-933_A
Troubleshooting
Service Diagnosis
193
4.14 Compressor Sensor System Abnormality
Remote
Controller Display
H0
Method of
Malfunction
Detection
Fault condition is identified by DC current which is detected before compressor startup.
Malfunction
Decision
Conditions
When the DC current before compressor startup is other than 0.5 to 4.5 V (detected by
converting the sensor output to voltage), or the DC voltage is 50 V or less.
Supposed
Causes
Defective PCB
Harness disconnection / defective connection
Troubleshooting
(R7143)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the wire harness
damaged?
Damaged
Check the wire harness
Normal
Replace the wire harness.
Replace the outdoor unit
PCB.