When your furnace is running correctly, it should give warmth without creating too much disruption. While it’s common to notice your furnace making noise as it turns on, other sounds are indicating your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they might be indicating. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Omaha, Nebraska.

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over the years, so that’s why it’s important to book yearly furnace maintenance with The Frazier Company. One of the things our pros complete during this work is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup might break your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can discharge carbon monoxide, which is ordinarily released outdoors. This toxic gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, The Frazier Company urges you to turn it off and calling us at 402-628-0206. Significant natural gas in your furnace or a broken heat exchanger are dangerous problems that should get fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move hot air across your house. If the ductwork wasn’t installed right or is getting dated, it can make a lot of noise when your furnace is heating. This might be the case if your furnace makes a banging noise when it shuts off. Call The Frazier Company at 402-628-0206 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace relies on an internal transformer to work 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 has a blower motor, which moves hot or cold air around your space, and a capacitor, which starts the motor. If either of these parts 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 related to something little, like an unsecure screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating pros 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 on, it’s attempting to alert you it needs some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing may need to be greased. We know that maintenance sometimes slips your mind, but our technicians can get your furnace running quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You may also hear 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 help. It’s critical to get loose ductwork repaired quickly, since it can create comfort issues in your house and inflate your gas bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal noise usually means there’s trouble with your furnace’s blower. Shut down your furnace off promptly and reach us at 402-628-0206 for support.

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