Take out the bolts in the service panel on the side of the furnace using a nut driver.
Test furnace gas valve.
Turn off the furnace at the wall control.
Some gas valves cannot be checked with an ohmm.
Wait for the unit to cool if it has been in use.
This video is part of the heating and cooling series of training videos made to accompany my web.
Have the assistant set the dryer for high heat and turn the dryer on.
This one shows how to do a voltmeter check of the gas valve.
Sweep out any hair lint and foreign debris with a feather duster.
Locate the gas valve mechanism which looks like a small metal device that has two coils attached to it.
Locate the gas valve.
Have an assistant plug in the appliance and turn on the gas feed valve.
How to check the furnace gas valve with a multimeter step 1.
Pull the wires off.