When your furnace is working properly, it should give warmth without making too much noise. While it’s common to hear your furnace making noise as it starts up, other disruptions are signaling your furnace requires immediate professional help.

Here are some of the most common furnace noises and what they could mean. If your furnace is making an atypical noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Wilkes Barre and Scranton, Pennsylvania.

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 can signal there could be several problems. These include gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s essential to set seasonal furnace maintenance with GLR Mechanical. One of the things our pros complete during this work is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any breaks in it can discharge carbon monoxide, which is regularly vented away from your home. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, GLR Mechanical urges you to turn it off and calling us at 570-309-0403. Too much natural gas in your furnace or a cracked heat exchanger are serious troubles that should get prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air around your residence. If the ductwork wasn’t installed right or is aging, it can be noisy when your furnace runs. 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 determine the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently is telling you there’s an electrical issue, 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 isn’t tight enough, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cooled air across your residence, and a capacitor, which turns on the motor. If either of these pieces are going out, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be related to something little, like a loose screw, or something major, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating professionals at 570-309-0403 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to tell you it could use 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 lubed. We realize that maintenance often slips your mind, but our technicians can get your furnace heating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You may also be aware of whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still sensing sound, GLR Mechanical can assist you. It’s important to get loose ductwork repaired quickly, since it can result in comfort troubles in your home and inflate your heating expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal racket often means there’s an issue with your furnace’s blower. Switch off your furnace off promptly and call us at 570-309-0403 for support.

When you’re hearing a strange noise from your furnace, GLR Mechanical is available to help. Contact us at 570-309-0403 to schedule your furnace repair appointment right away.