Testing Furnace Gas Valve

Turn on the furnace and start it.

Testing furnace gas valve. Then screw in your manometer. Turn the gas back on. Unplug the appliance from the wall outlet. A solenoid valve that is filled with drudge might fail to open.

Videos you watch may be added to the tv s watch history and influence tv recommendations. This valve is usually found in the wall line leading to the dryer and is shut off by turning the handle perpendicular to the gas line. If playback doesn t begin shortly try restarting your device. Wait for the unit to cool if it has been in use.

Disassemble the valve and clean it out with a brush or rag. Turn off the furnace at the wall control. Locate the gas valve. A simple measurement will tell you if your valve is bad or another part keeping voltage from the.

Take out the bolts in the service panel on the side of the furnace using a nut driver. The manometer will give the reading in water column in inches. Locate the hot surface igniter and look for a spark or glow there. Some gas valves will have a pressure tap on both sides while some only have one on the furnace manifold side.

This video is part of the heating and cooling series. Great video troubleshooting this goodman furnace gas valve. There should not be a flame up there if the valve is working correctly. Turn the gas off.

Pull the wires off. This one covers a simple way to find out if the gas valve is being energized on the newer gas furnaces. Turn off the gas feed line valve to the dryer. Set the thermostat or the device s controller slightly above the current room temperature.

The ratings listed must align with the pressure rating shown on the valve. Locate the front lower access panel to the appliance. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. Locate the pressure tap on the gas valve and unscrew the plug.

Screw back in the gas valve plug using a small amount of pipe dope.