Compressor Sensor System Abnormality - Daikin G-Series Service Manual

SiBE12-933_A

4.14 Compressor Sensor System Abnormality

H0
Remote
Controller Display
Method of Fault condition is identified by DC current which is detected before compressor startup.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
Service Diagnosis
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.
Defective PCB
Harness disconnection / defective connection
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the wire harness
Is the wire harness
damaged?
Normal
Damaged
Troubleshooting
Replace the wire harness.
Replace the outdoor unit
PCB.
(R7143)
193