Pressure relief valve still leaks after it was replaced on a Burnham oil heater, why?

If it is just dripping a little, this is common until it seats itself. Sometimes this will take a few days. If it continues, you have a bad valve and will need to replace it.Pressure relief valve still leaks after it was replaced on a Burnham oil heater, why?
HMM. Maybe you got a bad relief valve, maybe the system is producing too much pressure for some reason.Pressure relief valve still leaks after it was replaced on a Burnham oil heater, why?
It is entirely possible for a pressure relief valve to be ';bad out of the box'; but I would first suspect the expansion tank. If it is a bladder type, the bladder could be broken; if not, it may just be waterlogged. Tap on it with a spoon near the top and you should be able to tell if its full of water.








If its bad, replacement is easy.


Shut off the water and the burner


Release pressure from the system thru a hot water faucet


Drain a gallon or two of water from the tank


Spin off the old expansion tank and spin on the new pre-charged one using teflon tape on the threads.


Turn the water back on.


Relight the burner
It might be that you have too much water pressure in your system. Most of the time a T%26amp;P valve on a heating system is only for 30 psi. See if you can find a pressure gauge anywhere. If need be relieve some of the pressure.
checked the atuo fill control valve it mite be set to hight most boiler operate at a lower pressure coming in to the house
Your pressure tank is water logged, or your reducing valve is bad.


These are not TP valves, only 30 PSI pressure valves.


It sounds like it's time to get the system checked by a pro.