When your furnace is running properly, it should provide warmth without generating too much noise. While it’s expected to notice your furnace making noise as it begins running, other sounds are showing your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they could be signaling. If your furnace is making an atypical noise, our friendly heating specialists are here to help with the best furnace repair in Reinholds, Pennsylvania.

1. Furnace Makes Banging or Knocking Sounds

You might have a critical situation 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 a couple of problems. These range from gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over the years, so that’s why it’s essential to schedule yearly furnace maintenance with County Line Mechanical LLC. One of the jobs our technicians perform during this work is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise if ignition takes more time. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can leak carbon monoxide, which is ordinarily emitted outside. This toxic gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, County Line Mechanical LLC advises turning it off and calling us at 717-216-0846. Significant natural gas in your furnace or a ruptured heat exchanger are serious troubles that necessitate prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air throughout your home. If the ductwork wasn’t put in correctly or is getting old, it can be noisy when your furnace is heating. This might be the problem if your furnace makes a banging noise when it shuts off. Call County Line Mechanical LLC at 717-216-0846 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound usually is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to run on the correct voltage. If wires or the box isn’t tight enough, you may notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or chilly air across your space, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it can be related to something little, like an unsecure screw, or something major, like a broken part. In either case, we recommend shutting off your furnace and calling our heating professionals at 717-216-0846 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to tell you it could use some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing could need to be lubricated. We know that maintenance often slips your mind, but our pros can get your furnace running quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve examined your vents but are still sensing whistling, County Line Mechanical LLC can provide support. It’s important to get loose ductwork taken care of fast, because it can make comfort issues in your residence and inflate your utility bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal racket frequently means there’s trouble with your furnace’s blower. Shut down your furnace off right away and call us at 717-216-0846 for support.

When you’re noticing a weird noise from your furnace, County Line Mechanical LLC is here to help. Contact us at 717-216-0846 to book your furnace repair appointment today.