Test Furnace Gas Valve Solenoid

The solenoid opens the gas valve when a glow stick gets hot enough to ignite the gas which turns the burner on.

Test furnace gas valve solenoid.

I replaced the leaking propane gas valve in a 1986 toyota motor home suburban furnace. The solenoid opens the gas valve to feed the flame when you turn on a gas furnace or gas heated clothes dryer. The valve fit perfectly. A gas chain valve system requires the homeowner to manually turn a valve handle in order to open or close the flow of gas to the furnace.

This video is part of the heating and cooling series of training videos made to accompany my web. Label located on the front of the solenoids metal cover. Some gas valves cannot be checked with an ohmm. It closes the valve when you turn off the appliance.

By the way never take a gas valve apart unless working as part of a demolition team. Suburban direct spark ignition rv water heaters sf and sfq model furnaces are equipped with a dual solenoid gas control valve. Getting to the gas valve on suburban furnaces is a real pain not so bad on the atwoods but you still have to check it not simply throw parts at it. These valves are currently supplied to suburban by two separate vendors.

Plus the pilot safety valve only stays open if the thermocouple or. This valve while expensive costs 1 4 the price of a new furnace. Furnace gas valves are wired to an electronic component known as a solenoid which receives signals from the thermostat control. This one shows how to do a voltmeter check of the gas valve.

Industrial furnaces ovens kilns incinerators burners and boilers. This causes the gas valve to widen or narrow in front of the pilot light to respond to changes in building temperature. White rodgers and seven universe. Solenoid valves for fuel oil and gas asco provides the broadest line of solenoid valves designed to control the flow of fuel gas liquid propane and all grades of fuel oil used in combustion applications such as.

This new valve does not leak. To test a suburban gas valve you are going to have to pull the working parts of the furnace out of its case. I will be checking various gas valves to see if you can check the continuity of the solenoid with an ohmmeter. A solenoid valve opens only when the furnace calls for heat.

This is not a job for the uninitiated and teflon tape on the screw in gas connections is a must.