Compressor System Sensor Abnormality - Daikin FVXS25FV1B Service Manual

Troubleshooting
4.16

Compressor System Sensor Abnormality

4.16.1 25/35 Class
H0
Remote
Controller
Display
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
112
The system checks the DC current before the compressor starts.
If the DC current before compressor start-up is out of the range 0.5-4.5 V (sensor output
converted to voltage value) or if the DC voltage before compressor start-up is below 50 V.
PCB defective
Broken or poorly connected harness
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the harness S30.
Is the harness broken?
NO
Turn off the power and turn it
on again.
Get restarted and error
displayed again?
YES
YES
NO
SiBE06-708
Replace the harness.
No problem. Keep on
running.
Replace the PCB (2).
(R4564)
Service Diagnosis