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SiBE07-618_D
Troubleshooting
Service Diagnosis
79
4.18 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 more than
A
Hz, and the CT input current is below
B
A.
If the error repeats 4 times, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
Defective power module
Breakage of wiring or disconnection
Defective reactor
Defective outdoor unit PCB
A
(Hz)
B
(A)
55
0.5