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RemFixitSearch fault code

Error code

Mitsubishi Electric PU code 4124

No approved translation for this record yet; showing the original text.

Meaning

The connector of 49C is open Consider the unit abnormal when the circuit of connector (49C) remains open for three consecutive minutes with the power on. 49C: Inner thermostat (Compressor) (PUH-P5, 6YGA and PU-P5, 6YGA Only.)

Member details

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Possible causes

(1) The connector of 49C on outdoor controller board has contact failure or disconnection. (2) The switch of 49C has contact failure or disconnection. (3) Power supply was turned on when 49C has been tripped. (4) 49C has been tripped (defective parts). (5) Outdoor controller board is defective.

Solution

Solution steps are not shared for faults that may be dangerous.

No do-it-yourself solution is given for this fault. For your safety, call an authorised service.

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