Sensor Abnormality Around Compressor System - Daikin FTXG25CVMAW Service Manual

Troubleshooting
4.18

Sensor Abnormality around Compressor System

H0
Remote
Controller
Display
Method of Detecting by the valve of direct current before the compressor starts up.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
94
When the value of direct current before the compressor starts up is not within 0.5~4.5V
(Sensor output is converted into voltage.)
When the value of direct voltage before the compressor starts up is under 50V.
Faulty outdoor unit PCB
Broken harness or imperfect connection
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the harness.
Broken?
NO
YES
Si04-402A
Exchange the harness.
Replace the PCB.
Service Diagnosis
(R4001)