Hot Water Heater Gas Valve On Position

Unlike components of an electric water heater the gas control valve is entirely outside the water heater and mounted near the bottom of the unit.

Hot water heater gas valve on position.

Be sure to check the valve opening once it s closed to ensure there are no water leaks. Apply gas rated pipe thread sealant or tape don t use standard white teflon tape to the gas nipple and thread it into the new gas control valve. Get a free estimate online from top local home service pros in your area. Need to hire a plumber.

On a gas water heater the gas control valve contains the thermostat and pilot light controls. If all goes well a tpr valve never gets used except during testing. Tighten the nipple using two pipe wrenches photo 7. Go back to the hot water tap opened earlier.

If you see the result is under 400 millivolts then it shows you with a poor thermopile. The gas dryer that was connected to this valve was recently sold and before that the yellow valve was in north and south position. The off position on the gas valve dial only means that it will not heat the water. On the side or top of your water heater tank is a valve connected to a metal or plastic discharge tube pointing downward.

The pilot light is still on and gas from the main supply line is still on. If it reads more than 400 millivolts then it shows you with a good thermophile output for your device. You need to turn the inline valve ninety degrees so that it is perpendicular with the gas line. Locate the gas pipe that feeds gas into the water heater and locate the shut off valve.

The valve is called a t p valve or tpr valve for temperature and pressure relief. Turn the gas valve back on from the pilot position or turn electricity back on to the tank. Once cold water begins to flow from the tap turn it off. This is not the valve located on the control box mounted on the water heater but is instead a valve installed along the pipe run itself.

The valve can have different appearances depending on who did the installation and when it was installed. So before disconnecting the end that goes to the dryer i turned the value to the way it is showing right now in the picture attached. For those with propane or liquefied petroleum gas there s a main shutoff valve on the tank itself and usually a main shutoff valve somewhere before the first appliance.