When your furnace is running correctly, it should deliver warmth without generating too much noise. While it’s expected to notice your furnace making noise as it turns on, other noises are signaling your furnace needs immediate professional help.

Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating professionals are here to assist with the best furnace repair in Wilkes Barre and Scranton, Pennsylvania.

1. Furnace Making a Banging Noise

You might have a serious issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be several problems. These range from gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over time, so that’s why it’s critical to schedule routine furnace maintenance with GLR Mechanical. One of the jobs our pros perform during this service is clean your furnace’s burners. When this piece gets dirty, you might hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup can crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any breaks in it can emit carbon monoxide, which is normally emitted outdoors. This hazardous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, GLR Mechanical recommends turning it off and reaching us at 570-309-0403. Significant natural gas in your furnace or a cracked heat exchanger are serious issues that should get immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air across your home. If the ductwork wasn’t installed correctly or is getting dated, it can be loud when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Get in touch with GLR Mechanical at 570-309-0403 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t wait 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 operate on the correct 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 hot or cold air around your residence, and a capacitor, which triggers 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 could be related to something minor, like an unfastened screw, or something serious, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 570-309-0403 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to get your attention it requires some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be lubricated. We are aware that maintenance often slips your mind, but our techs can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent is loose. If you’ve checked your vents but are still hearing noise, GLR Mechanical can assist you. It’s essential to get loose ductwork repaired quickly, because it can make comfort problems in your home and increase your heating expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal sound often means there’s trouble with your furnace’s blower. Shut down your furnace off promptly and call our pros at 570-309-0403 for assistance.

When you’re hearing an atypical noise from your furnace, GLR Mechanical is here to help. Contact us at 570-309-0403 to book your furnace repair appointment today.