Compressor Sensor System Abnormality (24/32 Class) - Daikin SUPER MULTI NX G Series Service Manual

SiUS12-928_A

5.18 Compressor Sensor System Abnormality (24/32 Class)

H0
Remote
Controller
Display
Outdoor Unit LED
A 5
Display
 Fault condition is identified by the supply voltage and the DC voltage which is detected before
Method of
Malfunction
 Fault condition is identified by the compressor current which is detected right after the
Detection
 If the error repeats 16 times, the system is shut down.
 Reset condition: Continuous run for about 5 minutes without any other error
 The detected value of the supply voltage and the DC voltage is obviously low or high.
Malfunction
 The compressor current does not run when the compressor is started.
Decision
Conditions
 Disconnection of reactor
Supposed
 Disconnection of compressor
Causes
 Defective outdoor unit PCB
 Defective compressor
Service Diagnosis
1 4 2 4 3 1 4 1
the compressor startup.
compressor startup.
Troubleshooting
126