Problem with Atwood water heater
My water heater is electric and gas. When I turn the switch on it does not work on electricity. It does operate and ignite on gas. However it runs until the pressure relief valve spews water. I ha...
Forum Discussion
The T&P valve is functioning properly when it relieves pressure caused by thermal expansion, but frequent relief can build up natural mineral deposits on the valve seat, rendering the valve inoperative… If there is no discharge from the valve, there is no need to replace the valve… the wax isn’t a factor…
A good indication of thermal expansion is when the T&P valve releases about one cup of water for each 10 gallons of heater capacity with each heating cycle…
Losing the air pocket can cause the same problem… there needs to be enough air in the tank to absorb the thermal expansion, because the RV water system doesn’t have a water expansion tank anywhere in the system and water doesn’t compress… air does…
reestablish your air pocket first and see how it works first… or your need to measure the water temp and see if it is really overheating… the RV water heater is designed to provide super-hot water (above recommended temps for a home water heater)…
A good indication of thermal expansion is when the T&P valve releases about one cup of water for each 10 gallons of heater capacity with each heating cycle…
Losing the air pocket can cause the same problem… there needs to be enough air in the tank to absorb the thermal expansion, because the RV water system doesn’t have a water expansion tank anywhere in the system and water doesn’t compress… air does…
reestablish your air pocket first and see how it works first… or your need to measure the water temp and see if it is really overheating… the RV water heater is designed to provide super-hot water (above recommended temps for a home water heater)…
