L5 " Outdoor Unit: Momentary Overcurrent Of Inverter Compressor - Daikin RQYQ140-180PY1 Service Manual

SiBE341001
L5
2.23 " " Outdoor Unit: Momentary Overcurrent of Inverter
Compressor
L5
Remote
Controller
Display
Applicable RQYQ-PY1
RQEQ-PY1
Models
Method of Malfunction is detected from the current flowing in the power transistor.
Malfunction
Detection
Malfunction When an excessive current (59.1A) flows in the power transistor.
(Instantaneous overcurrent also causes activation.)
Decision
Conditions
Supposed
Causes
Troubleshooting
Defect of compressor coil (disconnected, defective insulation)
Compressor start-up malfunction (mechanical lock)
Defect of inverter PCB
Troubleshooting by Remote Controller
142