Do you have to drain a water heater to replace the gas valve?
Removing and replacing a gas valve requires you to completely drain the water heater, turn off the gas control valve, turn off the gas and water supply.
How do you replace a gas control valve on a water heater?
Take the original valve with you to the hardware or gas supply store to get a matching replacement. Reconnect the new valve in reverse order. If you do not detect gas or a rotten egg odor, relight the pilot and verify that the water heater is working properly. Newer models may have wires connected to the gas control valve.
What do you do when your water heater is turned off?
With the gas turned off, disconnect the lines connected to the gas control valve using an open faced or adjustable wrench. It is important to hold the water heater in place while applying torque to the connectors or you could cause additional damages.
What to do if your water heater is leaking gas?
Turn the gas control knob off to discontinue the supply of gas to the water heater. Make sure the gas control valve is off as well so that no gas is getting to the heating equipment. Even still, be on the look out for gas leakage. If there is a strong smell of gas in the room, then call the gas company to rectify the problem immediately.
Do you have to replace the gas limiter on a water heater?
Once a heat limiter has been tripped, it must be replaced. However, replacing the heat limiter may not correct the original problem. Even though the limiter can be replaced, it probably indicates a failure in the thermostat or gas control valve as well.
Take the original valve with you to the hardware or gas supply store to get a matching replacement. Reconnect the new valve in reverse order. If you do not detect gas or a rotten egg odor, relight the pilot and verify that the water heater is working properly. Newer models may have wires connected to the gas control valve.
With the gas turned off, disconnect the lines connected to the gas control valve using an open faced or adjustable wrench. It is important to hold the water heater in place while applying torque to the connectors or you could cause additional damages.
Turn the gas control knob off to discontinue the supply of gas to the water heater. Make sure the gas control valve is off as well so that no gas is getting to the heating equipment. Even still, be on the look out for gas leakage. If there is a strong smell of gas in the room, then call the gas company to rectify the problem immediately.
Once a heat limiter has been tripped, it must be replaced. However, replacing the heat limiter may not correct the original problem. Even though the limiter can be replaced, it probably indicates a failure in the thermostat or gas control valve as well.
