First turn off the gas to the water heater or flip the breaker if it s electric.
Water heater relief valve replacement.
Before doing any work on a water heater you should always turn off the circuit.
2 drain the water from the tank until the water level is below the valve s location.
The most common reason for replacing the temperature and pressure relief valve is when the water heater is leaking.
Close the cold water cut off valve going into the water heater.
The pressure relief valve is there as a safety measure in case the pressure inside the tank gets too high.
Open the valve at the bottom and the pressure relief valve for a minute to drain a little.
This isn t a steep cost to ensure proper diagnosis and installation.
There is a simple test to determine whether the tpr valve is operating correctly.
How to replace a water heater pressure relief valve testing the pressure relief valve.
When a tprv at.
This valve allows water or steam to escape from the water heater if the temperature or pressure gets too high.
To do this connect a garden hose.
3 raise the.
For pricing and availability.
This video provides step by step repair instructions for replacing the temperature and pressure relief valve on an ao smith electric water heater.
If you do try to fix it here are the basic steps involved.
This prevents a water heater from exploding or turning into a missile.
Smith water heater isolation valve.
How to replace a water heater t p relief valve 1 shut off the cold water to the water heater and gas or electricity that heats the water heater.
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A replacement valve costs around 20 and calling in a professional could bring your cost up to 200.
Whirlpool water heater tune up kit.