When your furnace is running correctly, it should deliver warmth without creating too much disruption. While it’s expected to catch your furnace making noise as it begins running, other sounds are indicating your furnace requires immediate professional help.
Here are some of the most common furnace noises and what they could mean. If your furnace is making a weird noise, our friendly heating pros are here to help with the best furnace repair in South Beloit and Belvidere, Illinois.
1. Furnace Making a Banging Noise
You may have an urgent situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be a few problems. These range from gas increasing in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns dirty over time, so that’s why it’s important to set annual furnace maintenance with Fleming Heating & Air Conditioning Inc. One of the tasks our techs perform during this appointment is clean your furnace’s burners. When this component gets dirty, you may hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup may crack your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can leak carbon monoxide, which is normally vented away from your home. This toxic gas can be lethal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Fleming Heating & Air Conditioning Inc urges you to turn it off and calling us at 877-389-2465. Excessive natural gas in your furnace or a cracked heat exchanger are serious problems that necessitate prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move hot air across your house. If the ductwork wasn’t put in properly or is aging, it can be noisy when your furnace is heating. This could be the case if your furnace makes a banging noise when it shuts off. Contact Fleming Heating & Air Conditioning Inc at 877-389-2465 and we’ll determine the problem.
2. Furnace Buzzes Constantly
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to work on the correct voltage. If wires or the box is loose, you could detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes heated or cold air around your space, and a capacitor, which turns on the motor. If either of these components are going out, 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 little, like an unsecure screw, or something serious, like a broken piece. In either case, we advise shutting your furnace off and calling our heating specialists at 877-389-2465 for support.
4. Furnace Squeals
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to alert you it could use some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing might need to be lubricated. We are aware that maintenance often slips your mind, but our pros can get your furnace running quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re noticing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also hear whistling while the furnace is working if a floor vent isn’t tight. If you’ve looked at your vents but are still sensing whistling, Fleming Heating & Air Conditioning Inc can assist you. It’s important to get loose ductwork taken care of fast, because it can make comfort troubles in your home and increase your energy bills.
6. Furnace Makes Noise that Sounds Like Scraping Metal
It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise often means there’s a problem with your furnace’s blower. Shut down your furnace off now and contact us at 877-389-2465 for support.
When you’re noticing an atypical noise from your furnace, Fleming Heating & Air Conditioning Inc is available to support you. Contact us at 877-389-2465 to schedule your furnace repair appointment right away.