Things You'll Need:
- Flashlight
-
Step 1
Check for any blown fuses or any tripped circuit breakers if the gas furnace is not getting any power to it. You can check for these things at the main entrance panel as well as on the furnace. Simply flip the breaker back into the on position.
-
Step 2
Wait about half an hour and press the reset button on the gas furnace if you have found that the furnace has simply turned itself off. The furnace turns itself off often when the motor has overloaded, which means that the motor is working too hard. By giving the motor a 30-minute break, it should be able to reset itself.
-
Step 3
Check the gas valve. If the gas furnace is running, but it does not feel as if there is any heat coming from the vents in the home, check the gas valve that is connected to the gas furnace. Turn the valve all the way to make sure that it has not accidentally closed off or is partially blocked.
-
Step 4
Press the pilot light button on the gas furnace if there still is not any heat coming from the vents. When pressing the pilot light, press it firmly to ensure that it has been completely depressed. A partially pressed pilot light button may not be enough to ignite the pilot light.
-
Step 5
Reset the thermostat from the "On" setting to "Auto" if the blower will not stop running. This will make sure that the blower runs only when the furnace is producing heat. A blower that runs all day can waste quite a bit of energy.
