Ct Or Related Abnormality - Daikin FTXS09HVJU Service Manual

SiUS04-904

4.16 CT or Related Abnormality

H8
Remote
Controller
Display
A CT or related error is detected by checking the compressor running frequency and CT-detected
Method of
input current.
Malfunction
Detection
Malfunction The compressor running frequency is below 55 Hz and the CT input is below 0.1 V.
(The input current is also below 1.25 A.)
Decision
 If this error repeats 4 times, the system is shut down.
Conditions
 The error counter is reset if this or any other error does not occur during the following 60-minute
 Power transistor defective
Supposed
 Internal wiring broken or in poor contact
Causes
 Reactor defective
 Outdoor unit PCB defective
126
compressor running time (total time).
Troubleshooting
Service Diagnosis