This video is part of the heating and cooling series of training videos made to accompany my web.
Test furnace gas valve.
Some gas valves cannot be checked with an ohmm.
Have the assistant set the dryer for high heat and turn the dryer on.
Take out the bolts in the service panel on the side of the furnace using a nut driver.
Pull the wires off.
Locate the gas valve mechanism which looks like a small metal device that has two coils attached to it.
Locate the gas valve.
I will be checking various gas valves to see if you can check the continuity of the solenoid with an ohmmeter.
Have an assistant plug in the appliance and turn on the gas feed valve.
Turn off the furnace at the wall control.
How to check the furnace gas valve with a multimeter step 1.
This video is part of the heating and cooling series.
This one covers a simple way to find out if the gas valve is being energized on the newer gas furnaces.