Error code

Mitsubishi Electric PFD code 0403

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Meaning

Serial transmission abnormality: If serial transmission cannot be established between the MAIN and INV boards.

Member details

Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.

Possible causes

(1) Wiring is defective. (2) Switches are set wrong on the INV board. (3) A fuse (F01) on the INV board is defective. (4) The circuit board is defective.

Solution

Solution steps are available to members and are not shown on this page. Answer the questions to open the solution.

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