When your furnace is operating like it should, it should provide warmth without making too much disruption. While it’s normal to hear your furnace making noise as it begins running, other noises are indicating your furnace needs immediate professional help.

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

1. Furnace Makes a Banging Sound

You may have a serious situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate 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 dirty over time, so that’s why it’s critical to book annual furnace maintenance with The Frazier Company. One of the jobs our technicians complete during this appointment is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise after ignition takes longer than normal. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can discharge carbon monoxide, which is ordinarily released outdoors. This dangerous gas can be lethal in large concentrations.

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

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide heated air across your home. If the ductwork wasn’t installed correctly or is aging, it can be loud when your furnace is on. This can be the problem if your furnace makes a banging noise when it shuts off. Contact The Frazier Company at 402-628-0206 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently indicates an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes hot or cold air throughout your residence, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be related to something little, like an unfastened screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 402-628-0206 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s making an effort to alert you it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing might need to be lubricated. We realize that maintenance often slips your mind, but our pros can get your furnace heating quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also notice whistling while the furnace is on if a floor vent is loose. If you’ve checked your vents but are still hearing sound, The Frazier Company can provide support. It’s critical to get loose ductwork repaired fast, because it can create comfort issues in your house and increase your heating bills.

6. Furnace Making a Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal sound often means there’s trouble with your furnace’s blower. Switch off your furnace off immediately and reach our professionals at 402-628-0206 for assistance.

When you’re hearing a strange noise from your furnace, The Frazier Company is available to help. Contact us at 402-628-0206 to schedule your furnace repair appointment today.