When your furnace is running correctly, it should provide heat without creating too much sound. While it’s expected to hear your furnace making noise as it starts up, other disruptions are signaling your furnace needs immediate professional assistance.

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

1. Furnace Making a Banging Noise

You may have an urgent issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a couple of problems. These range from gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy as time passes, so that’s why it’s essential to book yearly furnace maintenance with Alpine Summit Heating & Cooling. One of the jobs our professionals perform during this appointment is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The resulting gas buildup can fracture your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can discharge carbon monoxide, which is ordinarily vented outside. This hazardous gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Alpine Summit Heating & Cooling urges you to turn it off and reaching us at 208-561-1226. Excessive natural gas in your furnace or a broken heat exchanger are serious issues that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air around your house. If the ductwork wasn’t installed properly or is getting old, it can be noisy when your furnace runs. This might be the issue 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 Making a Buzzing Noise

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

Your furnace relies on an internal transformer to run on the correct voltage. If wires or the box is loose, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or cooled air throughout your space, and a capacitor, which triggers the motor. If either of these components are failing, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be the result of something small, like an unsecure screw, or something major, like a broken component. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 208-561-1226 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to get your attention it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing may need to be greased. We realize that maintenance often slips your mind, but our pros can get your furnace heating quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is running if a floor vent is loose. If you’ve examined your vents but are still sensing noise, Alpine Summit Heating & Cooling can assist you. It’s critical to get loose ductwork taken care of quickly, since it can make comfort troubles in your residence and increase your utility expenses.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal racket often means there’s a problem with your furnace’s blower. Shut down your furnace off right away and contact our pros at 208-561-1226 for assistance.

When you’re getting a strange noise from your furnace, Alpine Summit Heating & Cooling is available to provide assistance. Contact us at 208-561-1226 to schedule your furnace repair appointment now.