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Banging, Screeching and Rattling: What 6 Common Furnace Noises Indicate

When your furnace is running properly, it should give warmth without making too much disruption. While it’s normal to notice your furnace making noise as it turns on, other sounds are showing your furnace needs immediate professional assistance.

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making an odd noise, our friendly heating pros are here to assist with the best furnace repair in Macon.

1. Furnace Making a Banging Noise

You may have an urgent problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These involve gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty as time passes, so that’s why it’s critical to set annual furnace maintenance with Air Temperature Control. One of the tasks our professionals complete during this service is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise when ignition is delayed. The ensuing gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can discharge carbon monoxide, which is ordinarily vented outdoors. This hazardous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Air Temperature Control urges you to turn it off and calling us at 478-202-3170. Significant natural gas in your furnace or a ruptured heat exchanger are critical troubles that should get fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide heated air across your house. If the ductwork wasn’t installed right or is aging, it can be noisy when your furnace is on. This could be the issue if your furnace makes a banging noise when it shuts off. Contact Air Temperature Control at 478-202-3170 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t hesitate 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 right voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or cooled air throughout your home, and a capacitor, which starts the motor. If either of these components are fading, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something minor, like a loose screw, or something critical, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating specialists at 478-202-3170 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to alert you it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be dilapidated or a bearing could need to be greased. We realize that maintenance often slips your mind, but our professionals can get your furnace operating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You might also notice whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still hearing whistling, Air Temperature Control can help. It’s critical to get loose ductwork taken care of quickly, as it can make comfort issues in your house and increase your gas expenses.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal racket frequently means there’s a problem with your furnace’s blower. Turn off your furnace off promptly and reach our pros at 478-202-3170 for help.

When you’re noticing an uncommon noise from your furnace, Air Temperature Control is ready to help. Contact us at 478-202-3170 to book your furnace repair appointment today.

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