Error code

Mitsubishi Electric PSA code E6

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

Meaning

Indoor/outdoor unit communication error (Signal receiving error) Abnormal if indoor controller board can 1 not receive any signal normally for 6 minutes after turning the power on. Abnormal if indoor controller board can 2 not receive any signal normally for 3 minutes. 3 Consider the unit abnormal under the following condition: When 2 or more indoor units are connected to an outdoor unit, indoor controller board cannot receive a signal for 3 minutes from outdoor controller circuit board, a signa

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Possible causes

(1) Contact failure, short circuit or, miswiring (converse wiring) of indoor/outdoor unit connecting wire (2) Defective transmitting receiving circuit of indoor controller board (3) Defective transmitting receiving circuit of indoor controller board (4) Noise has entered into indoor/ outdoor unit connecting wire.

Solution

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