F00 - High Temperature Switch Limit Exceeded 194F

[HTP]

Fault Code F00 - High Temperature Switch Limit Exceeded 194F

This display indicates if the water in the unit has overheated. This code indicates a serious safety issue and the unit will not restart until it cools sufficiently and a technician repairs the cause of overheating and pushes the RESET button on the display. This is a serious situation and is indicated by the red light on the display illuminating. During this lockout fault, the pump will be on in an effort to cool the boiler down.