Si10-417
Troubleshooting
Service Diagnosis
89
5.2.32 CT or Related Abnormality
Remote
Controller
Display
H8
Outdoor
Unit LED
Display
A
5
1
4
2
4
3
1
4
1
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.)
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).
Supposed
Causes
Power transistor defective
Internal wiring broken or in poor contact
Reactor defective
Outdoor unit PCB defective
Si10-417.fm Page 89 Wednesday, September 22, 2004 6:38 PM
