Error code

Mitsubishi Electric CMB code 4109

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Meaning

Indoor unit fan operation error: 1) Connector CN28 has remained open-circuited for 100 consecutive secondsduring operation.

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(1) Auxiliary relay (X13) fault (2) Connector (CN28) is disconnected. (3) Blown fuse (4) Motor error (thermistor error inside the motor)

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