Error code

Mitsubishi Electric PLA code E6

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

Meaning

(Signal receiving error) 1 Abnormal if indoor controller board cannot receive any signal normally for 6 minutes after turning the power on. 2 Abnormal if indoor controller board cannot 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 signal which allows outdoor controller circuit

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Possible causes

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 Noise has entered into indoor/ 4 outdoor unit connecting wire. Malfunction of fan motor 5

Solution

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