Error code

Mitsubishi Electric PU code E8

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Meaning

Indoor/outdoor unit communication error (Signal receiving error) (Outdoor unit) (1) Abnormal if outdoor controller could not receive anything normally for three minutes.

Member details

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Possible causes

(1) Contact failure of indoor/outdoor unit connecting wire (2) Defective communication circuit of indoor controller board (3) Defective communication circuit of indoor controller board (4) Noise has entered indoor/ outdoor unit connecting wire.

Solution

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