Atwood water heater presure releive valve

[adonh]

I have an Atwood 6 gal water heater and the pressure relief valve has a slow leak at times. I have drained the tank and replaced the main burner tube which was rusted from the water leaking on it. Y open and closed the pressure relief valve several time to clear any debris that may have been on the seal but it still leaks at times as the water heats up. I was thinking about replacing the valve but it hard to get at with a wrench since it recessed in the enclosure. Any tips on either trouble shooting this or actually replacing this relief valve. Thanks

[lynnmor]

First try draining the tank completely. Then fill it without opening the relief again. You need to maintain an air pocket at the top of the tank to allow for expansion.

If this doesn't work, then replacement is necessary.