Ct Or Related Abnormality - Daikin F-Series Service Manual

SiBE12-713
5.20

CT or Related Abnormality

H8
Remote
Controller
Display
Outdoor Unit LED A
Display
Method of A CT or related error is detected by checking the compressor running frequency and CT-
detected input current.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Service Diagnosis
5 4 4 1
1 2 3 4
The compressor running frequency is below 55 Hz and the CT input is below 0.1 V.
(The input current is also below 0.5 A.)
If this error repeats 4 times, the system will be shut down.
The error counter will reset itself if this or any other error does not occur during the following
60-minute compressor running time (total time).
Power transistor defective
Internal wiring broken or in poor contact
Reactor defective
Outdoor unit PCB defective
1
Troubleshooting
261