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