Heating

Brand

U.S.Boiler Company

U.S.Boiler Company

List all brands

Type:

K2-150-02

K2-150-02

Error code:

12
List all errors

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.

Share this page:

© 2025 ErrorHelp.us