Input Over Current Detection - Daikin F-Series Service Manual

SiBE12-712
4.11

Input Over Current Detection

E8
Remote
Controller
Display
Method of An input over-current is detected by checking the power consumption value of outdoor unit with
Malfunction the compressor running.
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Service Diagnosis
The following input value (calculated from power consumption of outdoor unit) with the
compressor running continues for 2.5 seconds.
Input value : Above 15 A
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
Troubleshooting
213