Water Heater few times per month, I will get about half a cup of water discharged out the pressure relief valve

raski

Premium Member
Joined
Jan 7, 2014
Messages
7
Location
Cleveland, ohio
Model Number
Power Miser 9
Brand
Sears Kenmore
Age
6-10 years
I have a nine year old Kenmore 9 - 40 gallon gas water heater which I believe is made by AO Smith. The tank works perfectly except for a few times per month, I will get about half a cup of water discharged out the pressure relief valve on the top of the tank. I have replaced the valve about six months ago which did not help. I have temperature set at around 120 degrees after a heat cycle. Measured water pressure is at 55 PSI. I have always flushed the tank twice a year from day one. I do not have an expansion tank. I don't know if that's the reason. I would appreciate any suggestions as to what is causing this. The problem started about two years ago.
 
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