SiUS12-928_B Troubleshooting for Outdoor Unit
Service Diagnosis 176
6.15 Position Sensor Abnormality
Remote
Controller
Display
H6
Outdoor Unit LED
Display
A j 1 i 2 i 3 h 4 h
Method of
Malfunction
Detection
A compressor start-up failure is detected by checking the compressor running condition through the
position detection circuit.
Malfunction
Decision
Conditions
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 5 minutes without any other error
Supposed
Causes
Disconnection of the compressor relay cable
Defective compressor
Defective outdoor unit PCB
Start-up failure caused by the closed stop valve
Input voltage is outside the specified range.
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