Testing Furnace Gas Valve

If this doesn t work read the nameplate mopd rating.

Testing furnace gas valve.

Disassemble the valve and clean it out with a brush or rag. Unplug the appliance from the wall outlet. Turn the gas off. Pull the wires off.

Lastly a low voltage can be the problem for its failure to open. How to check the furnace gas valve with a multimeter step 1. Turn off the furnace at the wall control. A simple measurement will tell you if your valve is bad or another part keeping voltage from the.

The ratings listed must align with the pressure rating shown on the valve. The manometer will give the reading in water column in inches. A solenoid valve that is filled with drudge might fail to open. Then screw in your manometer.

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. Locate the front lower access panel to the appliance. Take out the bolts in the service panel on the side of the furnace using a nut driver. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly.

Videos you watch may be added to the tv s watch history and influence tv recommendations. Screw back in the gas valve plug using a small amount of pipe dope. Turn the gas back on. Set the thermostat or the device s controller slightly above the current room temperature.

Great video troubleshooting this goodman furnace gas valve. Some gas valves will have a pressure tap on both sides while some only have one on the furnace manifold side. There should not be a flame up there if the valve is working correctly. This one covers a simple way to find out if the gas valve is being energized on the newer gas furnaces.

This video is part of the heating and cooling series. Turn on the furnace and start it. Turn off the gas feed line valve to the dryer. Locate the hot surface igniter and look for a spark or glow there.

Locate the gas valve.