Daikin REYQ8-48PY1B - L5 Outdoor Unit: Momentary Overcurrent of Inverter Compressor

Troubleshooting by Indication on the Remote Controller SiBE37-701_B
323 Troubleshooting
3.40
“
L5
”
Outdoor Unit: Momentary Overcurrent of Inverter
Compressor
Remote
Controller
Display
L5
Applicable
Models
REYQ8P~48P
Method of
Malfunction
Detection
Malfunction is detected from the current flowing in the power transistor.
Malfunction
Decision
Conditions
When an excessive current flows in the power transistor.
(Instantaneous overcurrent also causes activation.)
Supposed
Causes

Defect of compressor coil (disconnected, defective insulation)

Compressor start-up malfunction (mechanical lock)

Defect of inverter PCB