When your furnace is running properly, it should give warm air without creating too much sound. While it’s expected to notice your furnace making noise as it starts up, other sounds are showing your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they might mean. If your furnace is making an atypical noise, our friendly heating professionals are here to help with the best furnace repair in Athol, Idaho.

1. Furnace Makes a Banging Sound

You might have a serious problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These include gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over time, so that’s why it’s critical to set seasonal furnace maintenance with Alpine Summit Heating & Cooling. One of the things our pros complete during this service is clean your furnace’s burners. When this piece gets grimy, you could hear your furnace making a loud rumbling noise after ignition takes longer than normal. The subsequent gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can emit carbon monoxide, which is normally emitted outdoors. This dangerous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Alpine Summit Heating & Cooling recommends turning it off and calling us at 208-561-1226. Excessive natural gas in your furnace or a cracked heat exchanger are serious issues that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move heated air throughout your residence. If the ductwork wasn’t designed right or is getting dated, it can make a lot of noise when your furnace runs. This can be the case if your furnace makes a banging noise when it shuts off. Get in touch with Alpine Summit Heating & Cooling at 208-561-1226 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the proper voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves heated or cold air throughout your space, and a capacitor, which triggers the motor. If either of these pieces are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be related to something small, like an unsecure screw, or something serious, like a broken part. In either case, we urge you to shut your furnace off and contacting our heating professionals at 208-561-1226 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to get your attention it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing might need to be greased. We realize that maintenance sometimes slips your mind, but our technicians can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent isn’t tight. If you’ve looked at your vents but are still noticing whistling, Alpine Summit Heating & Cooling can provide support. It’s critical to get loose ductwork repaired fast, since it can create comfort troubles in your home and increase your utility costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s trouble with your furnace’s blower. Shut down your furnace off right away and call us at 208-561-1226 for assistance.

When you’re noticing an uncommon noise from your furnace, Alpine Summit Heating & Cooling is ready to support you. Contact us at 208-561-1226 to request your furnace repair appointment right away.