Specifications

SiBE341027 Troubleshooting by Remote Controller
Service Diagnosis 145
2.26 Inverter Over-Ripple Protection
Remote
Controller
Display
P1
Applicable
Models
RQYQ-PY1B
Method of Error
Detection
Imbalance in supply voltage is detected in PCB.
Error Decision
Conditions
When the amplitude of the ripple exceeding 6V is detected.
Error is not decided while the unit operation is continued.
“
P1
” will be displayed by pressing the inspection button.
Supposed
Causes

Open phase

Voltage imbalance between phases

Defective main circuit capacitor

Defective inverter PCB

Defective K2M relay in inverter PCB

Improper main circuit wiring