Testing Furnace Gas Valve

There are also gas valves located.

Testing furnace gas valve.

Testing with a multimeter lets you know the valve works. In essence it contains everything needed for the operation of a gas fired furnace. These types of gas valves are quite common and require the operator to manually turn a valve to open or close the flow of gas to the furnace. The furnace should be off the gas cock should be off and the power should be shut off before removing the plug.

The forced heat from the burner dries the. An inducer motor spins creating a vacuum that pulls out toxic gasses that come from the flames. The plug should be located near the outlet. A bad gas valve in a honeywell appliance such as a water heater or furnace that is powered by natural gas can go bad and affect the performance of the unit.

The furnace pressure switch sends a signal to the furnace control board that verifies the inducer motor is working. Some gas valves cannot be checked with an ohmm. When the building reaches the desired temperature a separate signal causes the gas valve to close. The furnace gas valve opens and closes which allows the flow of gas to the pilot light and burner s.

I will be checking various gas valves to see if you can check the continuity of the solenoid with an ohmmeter. Furnace gas valves are only seen on gas fueled forced air furnaces or gas powered boilers. It closes the valve when you turn off the appliance. The gas valve on the left shows a allen head plug labeled out press for manifold pressure.

The solenoid opens the gas valve to feed the flame when you turn on a gas furnace or gas heated clothes dryer. For example if the temperature in your house falls below the setting on the thermostat such as 68 degrees fahrenheit the gas valve opens to activate the furnace and produce more heat. While the component itself if actually rather simple a furnace gas valve is a crucial part of your hvac system. Because gas is involved problems with gas valves are a major safety concern.

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