Momentary Overcurrent Of Inverter Compressor - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

SiBE341027

2.22 Momentary Overcurrent of Inverter Compressor

L5
Remote
Controller
Display
Applicable RQYQ-PY1B
Models
Method of Error Error is detected from the current flowing in the power transistor.
Detection
Error Decision When an excessive current (59.1A) flows in the power transistor.
(Instantaneous overcurrent also causes activation.)
Conditions
Supposed
Causes
Service Diagnosis
Defective compressor coil (disconnected, defective insulation)
Compressor startup error (mechanical lock)
Defective inverter PCB
Troubleshooting by Remote Controller
137