Error code
Mitsubishi Electric PQHY code 0403
No approved translation for this record yet; showing the original text.
Meaning
Serial communication error Refer to section -7-"Inverter: Serial communication error between the main board and the INV board on the compressor, and between the main board and the inverter board Detail code 01: Between the main board and the compressor INV board " under part [4] "Trouble shooting | Serial communication error Refer to section -7- "Inverter: Serial communication error between the main board and the INV board on the compressor, and between the main board and the INV board Detail code 01: Between the main board and the compressor INV board " under part [4] "Trouble shooting
Member details
Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.
View details as a memberPossible causes
(1) Faulty wiring (2) Inverter address switch setting error (3) Compressor INV board failure principal parts" for error (3) Compressor INV board failure.
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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Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/pqhy/0403