Testing Furnace Gas Valve

Great video troubleshooting this goodman furnace gas valve.

Testing furnace gas valve.

If playback doesn t begin shortly try restarting your device. Disassemble the valve and clean it out with a brush or rag. Screw back in the gas valve plug using a small amount of pipe dope. Turn off the gas feed line valve to the dryer.

Turn off the furnace at the wall control. A solenoid valve that is filled with drudge might fail to open. Locate the front lower access panel to the appliance. How to check the furnace gas valve with a multimeter step 1.

Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. This one covers a simple way to find out if the gas valve is being energized on the newer gas furnaces. Wait for the unit to cool if it has been in use. Locate the pressure tap on the gas valve and unscrew the plug.

The manometer will give the reading in water column in inches. Turn the gas back on. This video is part of the heating and cooling series. Locate the hot surface igniter and look for a spark or glow there.

Videos you watch may be added to the tv s watch history and influence tv recommendations. Pull the wires off. The ratings listed must align with the pressure rating shown on the valve. Lastly a low voltage can be the problem for its failure to open.

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. There should not be a flame up there if the valve is working correctly. Some gas valves will have a pressure tap on both sides while some only have one on the furnace manifold side. If this doesn t work read the nameplate mopd rating.

Then screw in your manometer. Locate the gas valve. Set the thermostat or the device s controller slightly above the current room temperature. Turn the gas off.

Take out the bolts in the service panel on the side of the furnace using a nut driver.