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Error code

Mitsubishi Electric PURY code 0403

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

Meaning

Serial communication error: Serial communication error between the control board and the INV board on the compressor, and between the control board and the Fan board Detail code 1: Between the control board and the INV board Detail code 5, 6: Between the control board and the Fan board

Member details

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Possible causes

(1) Incorrect switch setting on the indoor unit circuit board (2) Power wire that connects the circuit board on the indoor unit and the circuit board on the cleaning unit is loose. (3) Communication wire that connects the circuit board on the indoor unit and the circuit board on the cleaning unit is loose. (4) Panel transceiver circuit fault (cleaning unit) (5) Panel transceiver circuit fault (indoor unit) (6) Electrical interference on the cleaning unit's communication cable

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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