Take out the bolts in the service panel on the side of the furnace using a nut driver.
Test furnace gas valve.
Have the assistant set the dryer for high heat and turn the dryer on.
Have an assistant plug in the appliance and turn on the gas feed valve.
Some gas valves cannot be checked with an ohmm.
How to check the furnace gas valve with a multimeter step 1.
Turn off the furnace at the wall control.
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 of training videos made to accompany my web.
I will be checking various gas valves to see if you can check the continuity of the solenoid with an ohmmeter.
Wait for the unit to cool if it has been in use.
Locate the gas valve mechanism which looks like a small metal device that has two coils attached to it.
Locate the gas valve.
Pull the wires off.