When your furnace is operating like it should, it should give warmth without generating too much disruption. While it’s expected to catch your furnace making noise as it turns on, other disruptions are showing your furnace requires immediate professional support.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making a weird noise, our friendly heating specialists are here to assist with the best furnace repair in Columbus, Ohio.

1. Furnace Makes a Banging Sound

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

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over the years, so that’s why it’s critical to schedule annual furnace maintenance with Classic Air. One of the jobs our technicians complete during this appointment is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The ensuing gas buildup might break your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can emit carbon monoxide, which is normally released outdoors. This dangerous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Classic Air urges you to turn it off and reaching us at 614-210-3041. Too much natural gas in your furnace or a ruptured heat exchanger are dangerous problems that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air throughout your residence. If the ductwork wasn’t designed right or is getting dated, it can be noisy when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Contact Classic Air at 614-210-3041 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound typically means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to operate on the proper voltage. If wires or the box isn’t tight enough, you might detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cold air around your rooms, and a capacitor, which turns on the motor. If either of these pieces are fading, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it can be related to something little, like a loose screw, or something major, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 614-210-3041 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to get your attention it could use some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn down or a bearing might need to be lubed. We realize that maintenance sometimes slips your mind, but our techs can get your furnace operating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You might also hear whistling while the furnace is running if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, Classic Air can provide support. It’s essential to get loose ductwork repaired without delay, since it can make comfort problems in your home and increase your heating costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise usually means there’s a problem with your furnace’s blower. Turn off your furnace off immediately and call our professionals at 614-210-3041 for assistance.

When you’re getting a strange noise from your furnace, Classic Air is ready to provide assistance. Contact us at 614-210-3041 to request your furnace repair appointment right away.