Position Sensor Abnormality - Daikin SUPER MULTI NX G Series Service Manual

SiUS12-928_A

5.19 Position Sensor Abnormality

H6
Remote
Controller
Display
Outdoor Unit LED
A 5
Display
Method of
A compressor startup failure is detected by checking the compressor running condition through the
position detection circuit.
Malfunction
Detection
 If the error repeats 8 times, the system is shut down.
Malfunction
 Reset condition: Continuous run for about 5 minutes without any other error
Decision
Conditions
 Disconnection of the compressor relay cable
Supposed
 Defective compressor
Causes
 Defective outdoor unit PCB
 Startup failure caused by the closed stop valve
 Input voltage out of specification
Service Diagnosis
1 4 2 4 3 1 4 1
Troubleshooting
128