When your furnace is running correctly, it should provide warmth without creating too much sound. While it’s normal to hear your furnace making noise as it turns on, other disruptions are indicating your furnace needs immediate professional support.

Here are some of the most reported furnace noises and what they might be signaling. If your furnace is making an odd noise, our friendly heating pros are here to help with the best furnace repair in Swanton, Ohio.

1. Furnace Makes a Banging Sound

You might have a critical issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of problems. These include gas increasing 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 essential to schedule yearly furnace maintenance with Northwest Services. One of the things our techs complete during this service is clean your furnace’s burners. When this component gets grubby, you could hear your furnace making a loud rumbling noise if ignition takes more time. The following gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any cracks in it can discharge carbon monoxide, which is ordinarily emitted outside. This hazardous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Northwest Services advises turning it off and contacting us at 419-548-5017. Excessive natural gas in your furnace or a cracked heat exchanger are serious troubles that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air around your house. If the ductwork wasn’t put in properly or is getting old, it can make a lot of noise when your furnace is heating. This could be the problem if your furnace makes a banging noise when it shuts off. Call Northwest Services at 419-548-5017 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you hear 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 work on the right voltage. If wires or the box is loose, you could hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cold air throughout your residence, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be due to something small, like a loose screw, or something critical, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 419-548-5017 for help.

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 get your attention it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be greased. We are aware that maintenance often slips your mind, but our technicians can get your furnace running quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You might also hear whistling while the furnace is running if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, Northwest Services can assist you. It’s critical to get loose ductwork taken care of fast, because it can result in comfort problems in your residence and inflate your utility costs.

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 noise often means there’s an issue with your furnace’s blower. Shut down your furnace off promptly and contact our professionals at 419-548-5017 for assistance.

When you’re hearing an atypical noise from your furnace, Northwest Services is available to provide assistance. Contact us at 419-548-5017 to schedule your furnace repair appointment today.