When your furnace is running properly, it should deliver warmth without generating too much noise. While it’s expected to hear your furnace making noise as it turns on, other noises are indicating your furnace should get immediate professional help.

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

1. Furnace Making a Banging Noise

You may have a critical issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These range from gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s important to schedule seasonal furnace maintenance with Alpine Summit Heating & Cooling. One of the tasks our technicians complete during this work is clean your furnace’s burners. When this piece gets grubby, you may hear your furnace making a loud rumbling noise if ignition is delayed. The ensuing gas buildup might crack your furnace’s heat exchanger, where natural gas turns into warm air. Any cracks in it can leak carbon monoxide, which is normally emitted away from your home. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Alpine Summit Heating & Cooling urges you to turn it off and contacting us at 208-561-1226. Significant natural gas in your furnace or a cracked heat exchanger are critical problems that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move heated air across your home. If the ductwork wasn’t installed properly or is aging, it can be noisy when your furnace is on. 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 observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically indicates an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to work on the correct voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cold air around your house, and a capacitor, which starts the motor. If either of these parts are fading, they will buzz when the furnace switches on.

3. Furnace Rattles

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

4. Furnace Is Making a High-Pitched Squealing Sound

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

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also be aware of whistling while the furnace is on if a floor vent isn’t secure. If you’ve examined your vents but are still noticing sound, Alpine Summit Heating & Cooling can help. It’s critical to get loose ductwork repaired quickly, since it can create comfort issues in your home and inflate 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 typically means there’s a problem with your furnace’s blower. Turn off your furnace off now and call us at 208-561-1226 for help.

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