Boiler not working after thermal coupling replacement Bad Thermal Coupling
MY DESA VSGF28PTB HAS A BAD THERMAL COUPLING. I EDIT: Our usual guy came out and fixed it. The gas valve went bad in it. Thanks for all the input! I've now turned off comnenting. Check if the pilot flame is weak or yellow instead of blue, indicating poor heat sensing. Inspect the thermocouple tip for soot or damage. Clean ...