When your furnace is running properly, it should deliver heat without making too much sound. While it’s expected to notice your furnace making noise as it begins running, other sounds are signaling your furnace needs immediate professional help.

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

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system turns filthy as time passes, so that’s why it’s important to schedule routine furnace maintenance with Freed Heating & Air Conditioning. One of the jobs our technicians complete during this appointment is clean your furnace’s burners. When this component gets grubby, you might hear your furnace making a loud rumbling noise if ignition takes more time. The ensuing gas buildup can crack your furnace’s heat exchanger, where natural gas turns into heat. Any cracks in it can discharge carbon monoxide, which is ordinarily released away from your home. This toxic gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Freed Heating & Air Conditioning urges you to turn it off and calling us at 309-323-9584. Significant natural gas in your furnace or a broken heat exchanger are hazardous troubles that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air throughout your residence. If the ductwork wasn’t designed properly or is aging, it can be noisy when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Freed Heating & Air Conditioning at 309-323-9584 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace uses an internal transformer to work on the proper voltage. If wires or the box needs to be tightened, you might detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves heated or chilly air across your house, and a capacitor, which turns on the motor. If either of these components are failing, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be related to something minor, like an unfastened screw, or something critical, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating specialists at 309-323-9584 for help.

4. Furnace Making a Squealing Noise

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 past few years, belts could be worn down or a bearing could need to be greased. We realize that maintenance frequently slips your mind, but our pros can get your furnace operating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You might also hear whistling while the furnace is working if a floor vent isn’t tight. If you’ve examined your vents but are still hearing whistling, Freed Heating & Air Conditioning can assist you. It’s important to get loose ductwork repaired quickly, since it can result in comfort issues in your house and inflate your utility bills.

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 sound frequently means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and call our professionals at 309-323-9584 for support.

When you’re noticing an uncommon noise from your furnace, Freed Heating & Air Conditioning is available to support you. Contact us at 309-323-9584 to request your furnace repair appointment now.