How to Reset a Furnace: The Basic StepsLet’s start by going over the exact steps you should take when it comes to how to reset a furnace yourself:
- Check the pilot light
- Turn down the thermostat
- Turn off the gas and power to the furnace
- Re-light the furnace
- Reset the furnace
Furnace Reset Step #1: Check the Pilot LightFor most of you homeowners out there who have a gas furnace, start by checking to see if the pilot light is on. This may require removing a panel, but once you do, it’s super easy. Is there a flame? If yes, it means your pilot light is on and you don’t need to reset your furnace in the first place. If no, it means that it isn’t on and you should continue with the next steps for how to reset your furnace.
Furnace Reset Step #2: Turn Down the ThermostatHead over to the thermostat and turn the heat down to its lowest possible setting. This is a precaution for safety’s sake, to make absolutely certain it won’t unexpectedly kick on while you are resetting your furnace.
Furnace Reset Step #3: Turn off the Gas and Power to Your FurnaceNext, you need to go to your circuit breaker box (wherever it may be) and turn off the power to the furnace. Next, find the main gas supply line to the furnace and use the handle there to turn off the furnace’s main gas supply. Make sure to leave the gas on to the pilot supply, though.
Furnace Reset Step #4: Re-light the FurnaceUsing a match, re-light the furnace’s pilot light by holding the small flame to the opening of the pilot flame jet that is just inside the furnace.
Furnace Reset Step #5: Finish Up Your ResetLastly, you’ll want to turn the power and the main gas supply back on before finding the clearly labeled reset button and hitting it. Then, just set your thermostat to the desired temperature.
When You Should Reset Your FurnaceAs you may have noticed above, if your pilot light is still lit, you don’t want to go through with a reset. So, you may now be wondering what situations do call for you to reset your furnace. The answer is basically that whenever you notice furnace problems, ranging from unheated air blowing out of your vents to no air coming out of your vents at all. I even recommend taking a look at the pilot light if you start to notice an odd smell. Basically, the same way that a little sign of trouble with your computer sends you rushing to do a quick reboot, any little sign of furnace trouble should have you going in there to check if the pilot light is still on. If you open up that panel and see that it’s gone out? Well then, it’s time to do a reset. And if that doesn’t work, it’s time to call in a professional.
When to Skip the Reset and Call a Furnace ProfessionalIf resetting your furnace is your first recourse when it comes to furnace troubles and furnace efficiency, your second should be calling in a professional HVAC technician to take a look at what’s going on. The thing about furnaces is that they use gas, which is dangerous, and electrical components, which are tricky for even the most skilled DIY repairman to work with. There’s really no shame in calling a pro to take a look at your furnace.
If you’re hearing loud noises from your furnace or smelling an odd smell, and the pilot light inside is still lit, you should definitely call a professional HVAC repair tech immediately.If you’re hearing loud noises from your furnace or smelling an odd smell, and the pilot light inside is still lit, you should definitely call a professional HVAC repair tech immediately. Simply put, with the chance of a gas leak or another serious issue looming, you don’t want to take any chances as an untrained tinkerer. I know I certainly wouldn’t ever dream of opening up my computer to tinker around—there’s just way too much that can go wrong. So, there you have it: the basics about how to reset a furnace, when a reset is necessary, and when to know that it’s time to call in the professionals. Luckily, you can always rely on folks like us here at Bell Brothers to help you out. Our trained HVAC technicians are available to come to your house for a free in-home consultation. They’ll be able to do so much more than reset your furnace. They’ll be able to let you know what’s going on, and they can help you fix it. Give us a call today! At Bell Brothers, we’re proponents of the whole home approach to health and efficiency, including finding ways to make your HVAC system as energy efficient as possible. Contact us today to schedule a free in-home consultation. Wondering how to finance a new furnace, or maybe even new windows and plumbing? HERO is a unique financing option that helps California homeowners afford energy efficient upgrades to their home. Contact Bell Brothers, a HERO-approved contractor, to learn more. Our local HVAC, plumbing, and window specialists will walk you through the entire process, from applications to installation. Image courtesy fizkes