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

When your furnace is working like it should, it should provide heat without making too much sound. While it’s common to catch your furnace making noise as it begins running, other sounds are showing your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating pros are here to assist with the best furnace repair in Columbus.

1. Furnace Making a Banging Noise

You could have an urgent issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal there could be a couple of problems. These involve gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy as time passes, so that’s why it’s critical to schedule annual furnace maintenance with Wolfe & Sons Heating and Cooling. One of the things our professionals perform during this appointment is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise when ignition takes more time. The subsequent gas buildup can crack your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can leak carbon monoxide, which is ordinarily emitted away from your home. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Wolfe & Sons Heating and Cooling advises turning it off and calling us at 614-451-0846. Significant natural gas in your furnace or a broken heat exchanger are critical issues that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air around your home. If the ductwork wasn’t put in correctly or is getting old, it can be loud when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Contact Wolfe & Sons Heating and Cooling at 614-451-0846 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to operate on the correct voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes warm or cooled air around your rooms, and a capacitor, which triggers 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 may be due to something little, like a loose screw, or something major, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 614-451-0846 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to get your attention it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubricated. We realize that maintenance often slips your mind, but our professionals can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also be aware of whistling while the furnace is on if a floor vent isn’t tight. If you’ve checked your vents but are still sensing noise, Wolfe & Sons Heating and Cooling can help. It’s essential to get loose ductwork repaired fast, because it can make comfort troubles in your residence and increase your gas bills.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal racket usually means there’s an issue with your furnace’s blower. Shut down your furnace off now and reach us at 614-451-0846 for assistance.

When you’re noticing a weird noise from your furnace, Wolfe & Sons Heating and Cooling is ready to provide assistance. Contact us at 614-451-0846 to request your furnace repair appointment now.

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