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

SiAF332111E

5.49 Inverter Circuit Capacitor High Voltage

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