Input Over Current Detection - Daikin E-Series Service Manual

SiENBE12-620

5.15 Input Over Current Detection

E8
remote control
Display
Outdoor Unit LED
A
Display
Method of
Malfunction is detected by checking the input current value.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Service Diagnosis
1 2 3 4
5 1 4 1
The following condition continues for 2.5 seconds.
Input current ≥ 20A (typical value)
The compressor halts if the error occurs, and restarts automatically after 3 minutes stand-by.
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
E8
4
Troubleshooting
229