How to Reset a Furnace

If your furnace isn’t working, don’t panic and call an HVAC tech just yet. You may be able to take care of the issue by simply resetting it. It’s something any novice do-it-yourselfer can do with the right know-how, and with the resources here at PlumbersStock, you can get the job done. Continue reading for an easy explanation on how to reset a furnace.

What Is a Furnace Reset Button?

A safety feature on furnaces usually forces the unit to shut down if the blower motor is overheating. It can trip for other reasons, for example, if there is an interruption in the gas supply. If this has happened to your furnace, you will see that the button has popped out.

Where Is the Furnace Reset Switch?

First of all, be aware that not all furnaces have a reset button; however, most do. If your electric furnace has one, it’s most likely located within the blower housing, next to the motor. If you own a gas furnace, it’s probably located within the control panel. Check your owner’s manual for specifics.

How to Reset a Gas Furnace

Check to ensure the pilot light is out. If it is not, then you need to turn the gas control switch off.
Turn your thermostat down to its lowest setting.
If you have an electronic pilot ignition, you need to cut off the power to your furnace via the circuit breaker.
Cut off the main gas supply and turn the gas control knob to pilot.
Now relight the pilot, either with a lighter, match, or with the switch (if electronic…you will have needed to cut the power back on).
Turn on the main gas supply.
Hit the reset button and hold it for 30 seconds.
Return the thermostat to your desired temperature.

How to Reset an Electric Furnace

Turn off the power to your furnace. If there is no power switch, then cut the power off from the circuit breaker.
Locate the reset button within the blower housing.
Hold the button until it clicks.
Restore power.

That’s it! You should be all done. If your furnace doesn’t kick on, at this point, you may want to consult an HVAC professional.

Update Your Furnace with PlumbersStock

Now that you know how to reset a furnace, if there is anything else you need, you can find it here. We carry a huge inventory of HVAC parts like blowers, furnace ignitors, blower wheels, etc. Did you know that you can find member pricing here on certain items (typically name brand, MAP priced items) if you log in? For industry professionals buying in bulk, please consider contacting us directly for extra special pricing and extra savings.