L1 Outdoor Unit: Defective Inverter Pc Board - Daikin RXYQ96PYDN Service Manual

SiUS34-801A_b
L1
3.35 Outdoor Unit: Defective Inverter PC Board
L1
Remote
Controller
Display
Applicable RXYQ72P~240PYDN, PTJU
Models REYQ72P~240PYDN, PTJU
Method of
Malfunction is detected based on the current value during waveform output before starting
Malfunction compressor.
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
Inverter PC board (A2P)
IPM failure
Current sensor failure
Drive circuit failure
Troubleshooting by Indication on the Remote Controller
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