When your furnace is running like it should, it should deliver warm air without creating too much noise. While it’s normal to hear your furnace making noise as it begins running, other noises are signaling your furnace requires immediate professional assistance.

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

1. Furnace Makes a Banging Sound

You might have an urgent problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate 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 turns filthy over the years, so that’s why it’s critical to book annual furnace maintenance with J.L. Brady Company LLC. One of the jobs our technicians perform during this work is clean your furnace’s burners. When this piece gets dirty, you may hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup may crack your furnace’s heat exchanger, where natural gas changes into heat. Any cracks in it can discharge carbon monoxide, which is regularly vented outdoors. This hazardous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, J.L. Brady Company LLC recommends turning it off and contacting us at 309-517-7511. Excessive natural gas in your furnace or a fractured heat exchanger are hazardous issues that should get immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move hot air around your residence. If the ductwork wasn’t installed right or is aging, it can be loud when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Call J.L. Brady Company LLC at 309-517-7511 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to run on the correct 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 distributes hot or cold air throughout your rooms, and a capacitor, which triggers the motor. If either of these pieces are going out, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be the result of something minor, like an unsecure screw, or something serious, like a broken piece. In either case, we urge you to shut your furnace off and contacting our heating pros at 309-517-7511 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to get your attention it requires some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing might need to be lubricated. We know that maintenance frequently slips your mind, but our pros can get your furnace heating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also notice whistling while the furnace is running if a floor vent isn’t secure. If you’ve examined your vents but are still noticing sound, J.L. Brady Company LLC can assist you. It’s critical to get loose ductwork fixed quickly, since it can result in comfort troubles in your residence and inflate your energy costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal noise frequently means there’s an issue with your furnace’s blower. Turn off your furnace off now and reach our pros at 309-517-7511 for help.

When you’re getting an atypical noise from your furnace, J.L. Brady Company LLC is ready to help. Contact us at 309-517-7511 to request your furnace repair appointment right away.