When your furnace is running like it should, it should deliver warm air without making too much noise. While it’s expected to hear your furnace making noise as it starts up, other disruptions are signaling your furnace should get immediate professional support.

Here are some of the most common furnace noises and what they might be signaling. If your furnace is making an atypical noise, our friendly heating professionals are here to help with the best furnace repair in Omaha, Nebraska.

1. Furnace Making a Banging Noise

You may have a critical situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal 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 gets grimy over time, so that’s why it’s critical to schedule seasonal furnace maintenance with The Frazier Company. One of the jobs our pros perform during this work is clean your furnace’s burners. When this piece gets dirty, you might hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any cracks in it can leak carbon monoxide, which is regularly emitted outdoors. This dangerous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, The Frazier Company recommends turning it off and contacting us at 402-628-0206. Significant natural gas in your furnace or a cracked heat exchanger are dangerous problems that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move hot air across your house. If the ductwork wasn’t designed correctly or is aging, it can be noisy when your furnace runs. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with The Frazier Company at 402-628-0206 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace uses an internal transformer to work on the right voltage. If wires or the box is loose, you might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot 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 can be related to something small, like an unfastened screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 402-628-0206 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 needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing may need to be lubed. We know that maintenance sometimes slips your mind, but our techs can get your furnace heating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s frequently due to 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 looked at your vents but are still hearing whistling, The Frazier Company can provide support. It’s critical to get loose ductwork fixed quickly, because it can create comfort issues in your home and increase your gas bills.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise typically means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and reach our pros at 402-628-0206 for support.

When you’re getting an uncommon noise from your furnace, The Frazier Company is ready to help. Contact us at 402-628-0206 to schedule your furnace repair appointment today.