L1 " Outdoor Unit: Defective Inverter Pc Board - Daikin VRV III REYQ8PY1 Service Manual

Si37-701
L1
3.35 " " Outdoor Unit:
L1
Remote
Controller
Display
Applicable REYQ8P~48P
Models
Method of Malfunction is detected based on the current value during waveform output before starting
compressor.
Malfunction
Malfunction is detected based on the value from current sensor during synchronous operation
Detection
when starting the unit.
Malfunction Overcurrent (OCP) flows during waveform output.
Malfunction of current sensor during synchronous operation.
Decision
IPM failure.
Conditions
Supposed
Causes
Troubleshooting
Defective Inverter PC Board
Inverter PC board (A2P)
IPM failure
Current sensor failure
Drive circuit failure
Troubleshooting by Indication on the Remote Controller
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