When your furnace is working properly, it should give warm air without making too much noise. While it’s common to notice your furnace making noise as it begins running, other sounds are signaling your furnace should get immediate professional support.

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

1. Furnace Making a Banging Noise

You might have a serious issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal there could be a couple of problems. These involve gas building up 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 routine furnace maintenance with Gopher Heating and Air Conditioning. One of the things our technicians complete during this work is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can emit carbon monoxide, which is regularly released outdoors. This dangerous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Gopher Heating and Air Conditioning recommends turning it off and calling us at 952-373-0377. Too much natural gas in your furnace or a fractured heat exchanger are serious problems that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move hot air around your home. If the ductwork wasn’t installed correctly or is aging, it can be loud when your furnace is on. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Gopher Heating and Air Conditioning at 952-373-0377 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to operate on the proper voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cooled air around your residence, and a capacitor, which turns on the motor. If either of these components are failing, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be due to something minor, like a loose screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 952-373-0377 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to tell you it needs some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be lubed. We know that maintenance often slips your mind, but our pros can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also notice whistling while the furnace is on if a floor vent is loose. If you’ve checked your vents but are still sensing noise, Gopher Heating and Air Conditioning can provide support. It’s important to get loose ductwork taken care of without delay, because it can make comfort issues in your home and increase your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you hear 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 instantly and contact our professionals at 952-373-0377 for assistance.

When you’re noticing a weird noise from your furnace, Gopher Heating and Air Conditioning is ready to provide assistance. Contact us at 952-373-0377 to book your furnace repair appointment now.