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Si12-619A
Troubleshooting
Service Diagnosis
239
5.21
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
Hz and the CT input is below 0.1 V.
(The input current is also below
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
E series 50-58 class
55
0.5
E series 68-75 class
55
1.25
E series 80-100 class
32
1.25
D series
55
1.25
Summary of Contents for 3MKS50DVM
Page 13: ...Introduction Si12 619A xii ...
Page 131: ...Control Specification Si12 619A 118 Function and Control ...
Page 213: ...Instruction Si12 619A 200 Operation Manual ...
Page 283: ...Check Si12 619A 270 Service Diagnosis ...
Page 302: ...Si12 619A Outdoor Unit E Series 50 52 58 Class Removal Procedure 289 Step Procedure Points ...
Page 385: ...Wiring Diagrams Si12 619A 372 Appendix FTK X S50 60 71FVLT ...
Page 399: ...Si12 619A vi Index ...