Ct Or Related Abnormality - Daikin Super Multi NX FFQ25B8V1B Service Manual

SiBE121021_C

7.11 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
50-75 class
80/90 class
Supposed
Causes
Service Diagnosis
j i i h h
1 2 3 4
The compressor running frequency is more than
A (Hz)
55
32
If the error repeats 4 times, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Defective power transistor
Breaking of wiring or disconnection
Defective reactor
Defective outdoor unit PCB
h
5
Hz and input current is below
A
B (A)
0.5
0.5
Troubleshooting for Outdoor Unit
B
A.
347