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

SiUS12-928_A Troubleshooting
Service Diagnosis 126
5.18 Compressor Sensor System Abnormality (24/32 Class)
Remote
Controller
Display
H0
Outdoor Unit LED
Display
A 5 1 4 2 4 3 1 4 1
Method of
Malfunction
Detection
 Fault condition is identified by the supply voltage and the DC voltage which is detected before
the compressor startup.
 Fault condition is identified by the compressor current which is detected right after the
compressor startup.
 If the error repeats 16 times, the system is shut down.
 Reset condition: Continuous run for about 5 minutes without any other error
Malfunction
Decision
Conditions
 The detected value of the supply voltage and the DC voltage is obviously low or high.
 The compressor current does not run when the compressor is started.
Supposed
Causes
 Disconnection of reactor
 Disconnection of compressor
 Defective outdoor unit PCB
 Defective compressor