Power Supply Voltage Imbalance - Daikin RXYQ-TA Series Service Manual

SiUS341615E

3.50 Power Supply Voltage Imbalance

P1
Error Code
Applicable
All outdoor unit models
Models
Method of Error
Detect voltage imbalance through PCB.
Detection
Error Decision When power supply voltage imbalance exceeds approximately 12 V.
Conditions
Error is not decided while the unit operation is continued.
P1 will be displayed by pressing the inspection button.
Supposed
Causes
Service Diagnosis
Open phase
Interphase voltage imbalance
Defective capacitor in the main circuit
Defective inverter PCB
Defective K1M, K2M (inverter PCB)
Defective wiring in the main circuit
Troubleshooting by Error Code
254