First turn off the gas to the water heater or flip the breaker if it s electric.
Water heater temperature pressure relief valve leaking.
A leakage in your water heater pressure relief valve is a sign of a malfunction in your overflow valve.
Open a hot water faucet near the heater to release pressure and drain the tank until the water level is below the valve.
If a pressure relief valve for a boiler is accidentally installed on a water heater it will leak like crazy from the start.
When a temperature and pressure t p relief valve at a water heater leaks it s usually a simple fix.
In the first case the valve will drain water out of the discharge pipe as explained above.
Just replace the valve.
When you see water coming out from the water heater release valve there are two most likely causes.
Disconnect the overflow tube you may have to cut it and unscrew the valve with a wrench.
A good solution to this risk is the relief valve.
It s better to take precautions before waiting till things get worse.
1 either the water pressure inside the tank is too high 2 the water temperature is too high 3 the t p valve hasn t been used in a few years 4 the wrong t p valve was installed or 5 the t p valve itself has failed.
These valves may look identical but they re set to go off at 30 psi.
And many homeowners have complained that faulty and unattended temperature pressure relief valves have exploded at times they least expected in most cases.
Open the valve at the bottom and the pressure relief valve for a minute to drain a little water out of the tank and relieve the pressure.
There are numerous possible reasons your water heater s pressure relief valve leaks.
Reasons for water discharging from the relief valve.
To remove a t p valve first turn off the electricity or gas and wait for the water to cool which usually takes about 24 hours.
Either the valve was triggered to open because of excessive temperature or pressure or the valve itself is faulty.
Close the cold water cut off valve going into the water heater.