Error code

Mitsubishi Electric PUHZ code E8

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Meaning

Interface unit/Flow temp. controller-outdoor unit communication error (Signal receiving error) (Outdoor unit) (1) Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes.

Member details

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Possible causes

(1) Contact failure of Interface unit/ Flow temp. controller-outdoor unit connecting wire (2) Defective communication circuit of outdoor controller circuit board (3) Defective communication circuit of Interface/Flow temp. controller board (4) Noise has entered into Interface unit/ Flow temp. controller-outdoor unit connecting wire.

Solution

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