Troubleshooting by Error Code
3.58 Power Supply Voltage Imbalance
Applicable
All outdoor unit models
Models
P1
Error Code
Method of Error
Detect voltage imbalance through inverter 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
Open phase
Causes
Interphase voltage imbalance
Defective capacitor in the main circuit
Defective inverter PCB
Defective magnetic relay
Defective wiring in the main circuit
327
SiUS341802EC
Part 6 Service Diagnosis