Originally Posted by grthigpen
Well, fired up the water heater and didn't know it had something in the burner area (wasp nest or spider webs) and they caught on fire and damaged the exterior vent grill and door and also blacked up the coach above it. Now it seems the heater will fire up but wont cut off before the pop off valve starts leaking. Could the sensor now be damaged? since 12 years old, should I try to check and repair or should I just change the whole unit out? especially since the 110V unit was burnt out and didn't work when I bought it and don't know how long ago it quit working.... thx for feedback
2003 HR Endeavor
Have you tried re-establishing the air expansion pocket at the top of the water heater tank to give the water some place to expand to when it is heated?
(Whenever the "relief valve", (aka: pop off valve or T&P valve), on my WH starts to leak re-establishing that air pocket has always stopped the leak).
Here's how to re-establish the air pocket in a water heater:
1.) Turn the heater heater OFF, (both gas and electric).
2.) Shut off the water supply.
3.) Open the relief valve until water stops coming out.
4.) Close the relief valve.
5.) Turn the water supply on.
6.) Turn the water heater ON.