Daikin FTXS09DVJU - CT or Related Abnormality

Troubleshooting SiUS04-702
152 Service Diagnosis
4.16 CT or Related Abnormality
Remote
Controller
Display
H8
Method of
Malfunction
Detection
A CT or related error is detected by checking the compressor running frequency and CT-detected
input current.
Malfunction
Decision
Conditions
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.)
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If this error repeats 4 times, the system will be shut down.
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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).
Supposed
Causes
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Power transistor defective
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Internal wiring broken or in poor contact
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Reactor defective
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Outdoor unit PCB defective