Daikin VRV S RXQ4/5ARV1 - Inverter Circuit Capacitor High Voltage

SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 285
5.49 Inverter Circuit Capacitor High Voltage
Applicable
Models
RXQ4/5AR, RXMQ6AR
Error Code P1
Method of Error
Detection
The voltage waveform of the main circuit capacitor of the inverter is used to check for errors.
Error Decision
Conditions
The voltage waveform fluctuates greatly.
Supposed
Causes
 Defective main circuit capacitor
 Incorrect main circuit wiring
 Defective outdoor unit main PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
NO
YES
Measure voltage between L and N.
Is power supply
voltage within
rated voltage ±10%?
Correct the power supply
voltage.
Replace the outdoor unit main
PCB (A1P).