Heating

Brand

U.S.Boiler Company

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Type:

MPO-IQ84

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Error code:

Err2
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Error code: Err2

Cause of error code Err2

Communication Fault

Solution for error code Err2

Enviracom terminal is shorted to ground or line voltage.
-Check wiring to EnviraCOM terminals 1,2 and 3. Wiring to external EnviraCom device is incorrect.

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