Heating

Brand

U.S.Boiler Company

U.S.Boiler Company

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Type:

K2-080-02

K2-080-02

Error code:

12
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Error code: 12

Cause of error code 12

Flame detected out of sequence

A flame signal was present when there should be no flame.
-Condensate trap plugged.

Solution for error code 12

-Defective gas valve - make sure inlet pressure is below maximum on rating plate before replacing valve.
-Plugged drain line in trap.

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