P1" Outdoor Unit: Inverter Over-Ripple Protection; Inverter Over-Ripple Protection - Daikin RXYQ72 Serivce Manual

Troubleshooting by Indication on the Remote Controller
2.38 "P1" Outdoor Unit:
P1
Remote
Controller
Display
Applicable RXYQ72M, 96M
Models
Method of Imbalance in supply voltage is detected in PC board.
Malfunction
Detection
Malfunction When the resistance value of thermistor becomes a value equivalent to open or short circuited
status.
Decision
Conditions
Supposed
Causes
168

Inverter Over-Ripple Protection

Malfunction is not decided while the unit operation is continued.
"P1" will be displayed by pressing the inspection button.
Open phase
Voltage imbalance between phases
Defect of main circuit capacitor
Defect of inverter PC board
Defect of K1M
Improper main circuit wiring
SiUS39-601
Troubleshooting