Question about Water Heaters
I recently installed a new Whirlpool electric water heater. I noticed the other day that the top valve was spitting out hot water. This is the valve located above the popoff valve.
Is this normal or could there be a problem with the heater or the way it is installed.
I believe the problem you had with the pop off valve is a one time thing since you said you just installed the water h eater
The pop off valve is a pressure relief valve that is activated by build up in the tank from excessive pressure either through too much heat or pressure which works by pressing aginst a spring loaded valve
If you go to the whater heater and look at the valve ther is a handle on it take your hand (stand clear of valve opening) and slowly pull it you will see water start to come out
More than likely a new valve could have had a piece of debris in it or was partially open
If the heater was overheating the valve would stay open and you would see extremly hot water rushing out
I do not recommend that you replace the valve unless it continues
Good luck to you
Posted on Jan 09, 2009
If it is your pop off valve (also known as a temp and pressure valve) it will most likely be due to a over pressure situation, whether it is due to excessive temp, or high street pressure, I'm not sure. There is also usually a vacuum breaker on the cold side of the hot water tank, this will on occasion spit out a little water, but unless it is defective, it should never be so much as that you would notice a "leak".
Another thing, if it is the T & P Valve, there should be no shut off installed on the piping. There should be a pipe that terminates with 18" of the floor, and it is not normal for this valve to discharge unless there is a problem with the temp or the pressure inside the tank.
Hope this helps
Posted on Jan 08, 2009
You need to identify why the Temperature and Pressure Valve is Leaking .
If the valve is defective relace it.
Is the home in question on City Water Service? If so the problem may be a check valve in the system.
Several years ago the Federal Government required water purveyors to install check valves at the water meters. This has created a problem for many homeowners as the water heats up in the water heater the water expands and because of the check valve in the system the water has no where to go.
Go to the following web page and check out thermol expansion.
THe same problem can exist on a well system if a check valve has been installed.
What ever you do DO NOT cap off the T&P valve it is a crucial safety device on the water heater.
I hope this helps!
Posted on Jan 10, 2009
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Posted on Jan 02, 2017
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