Mitsubishi Electric PURY-P72 Service Handbook page 223

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Table of Contents

[ IX Troubleshooting ]

1. Error Code

Indoor unit fan operation error

2. Error definition and error detection method

1) During operation, it has been continuously detected for 100 seconds that the auxiliary relay (X13) for fan fault detection is not

3. Cause, check method and remedy

Auxiliary relay (X13) fault

Connector (CN28) is disconnected.

Motor error (thermistor error inside the motor)

Check method and remedy

Coil failure, disconnected coil

Check the connector for proper connection.

Check the fuse on the control circuit board.

Check the unit fan for proper operation in the test run

If no problems are found with items 1 through 3 above and

the fan does not operate, replace the motor.

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Table of Contents

Troubleshooting