When your furnace is running properly, it should provide warm air without making too much disruption. While it’s common to hear your furnace making noise as it begins running, other sounds are signaling your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making an odd noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Covington, Georgia.

1. Furnace Makes a Banging Sound

You might 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 may indicate there could be a few problems. These range from gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets dirty as time passes, so that’s why it’s important to set seasonal furnace maintenance with Covington Air Systems. One of the tasks our pros complete during this work is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can discharge carbon monoxide, which is normally released outdoors. This dangerous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Covington Air Systems urges you to turn it off and calling us at (770) 462-5319. Significant natural gas in your furnace or a cracked heat exchanger are hazardous issues that should get immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air throughout your home. If the ductwork wasn’t designed correctly or is getting dated, it can make a lot of noise when your furnace is heating. This could be the case if your furnace makes a banging noise when it shuts off. Call Covington Air Systems at (770) 462-5319 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to run on the correct voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cooled air across your home, and a capacitor, which turns on the motor. If either of these parts are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be due to something small, like a loose screw, or something serious, like a broken part. In either case, we advise shutting your furnace off and calling our heating specialists at (770) 462-5319 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to tell you it needs some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be greased. We realize that maintenance often slips your mind, but our techs can get your furnace heating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent isn’t secure. If you’ve looked at your vents but are still noticing whistling, Covington Air Systems can help. It’s important to get loose ductwork repaired fast, since it can make comfort troubles in your residence and drive up your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal sound typically means there’s an issue with your furnace’s blower. Switch off your furnace off immediately and contact us at (770) 462-5319 for assistance.

When you’re noticing an uncommon noise from your furnace, Covington Air Systems is available to provide assistance. Contact us at (770) 462-5319 to book your furnace repair appointment now.