Error code

Mitsubishi Electric MXZ code ED

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Meaning

Serial communication error 1.Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective.

Member details

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Possible causes

(1) Breaking of wire or contact failure of connector CN2 between the outdoor controller circuit board and the outdoor power circuit board (2) Breaking of wire or contact failure of connector CN4 between the outdoor controller circuit board and the outdoor power circuit board (3) Defective communication circuit of outdoor power circuit board (4) Defective communication circuit of outdoor controller circuit board for outdoor power circuit board

Solution

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