Compressor Sensor System Abnormality - Daikin F-Series Service Manual

SiEN12-710A

4.14 Compressor Sensor System Abnormality

H0
Remote Control
Display
Method of Fault condition is identified by DC current which is detected before compressor startup.
Malfunction
Detection
Malfunction
" When the DC current before compressor startup is other than 0.5 to 4.5 V (detected by
Decision
Conditions
Supposed " Defective PCB
Causes " Harness disconnection / defective connection
Troubleshooting
Service Diagnosis
converting the sensor output to voltage), or the DC voltage is 50 V or less.
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)
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