Ct Or Related Abnormality - Daikin CTXS09GVJU Service Manual

SiUS12-814

5.20 CT or Related Abnormality

H8
Remote
Controller
Display
Outdoor Unit LED A 5
Display
Method of
A CT or related error is detected by checking the compressor running frequency and CT-detected
Malfunction input current.
Detection
Malfunction The compressor running frequency is below 55 Hz (18 class) or 32 Hz (32 class).
Decision
Conditions
Supposed
Causes
Service Diagnosis
1 4 2 4 3 1 4 1
The input current is also below 1.25 A (18 class) or 0.5A (32 class).If this error repeats 4 times,
the system will shut down.
The error counter resets itself if this or any other error does not occur during the following 60-
minute compressor total running time.
Power transistor defective
Internal wiring broken or in poor contact
Reactor defective
Outdoor unit PCB defective
Troubleshooting
141