Input Over Current Detection - Daikin FTKE25BVM Service Manual

Troubleshooting
5.14

Input Over Current Detection

E8
Remote
Controller
Display
Outdoor Unit LED A
Display
Method of An input over-current is detected by checking the input current value being detected by CT with
the compressor running.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
186
1 2 3 4
5 1 4 1
The following CT input with the compressor running continues for 2.5 seconds.
CT input : Above 20 A
The system will be shut down if the error occurs 16 times.
Clearing condition : Continuous run for about 5 minutes (normal)
Over-current due to compressor failure
Over-current due to defective power transistor
Over-current due to defective inverter main circuit electrolytic capacitor
Over-current due to defective outdoor unit PCB
Error detection due to outdoor unit PCB
Over-current due to short-circuit
4
Si12-411A
Service Diagnosis