When your furnace is running properly, it should provide heat without creating too much noise. While it’s common to notice your furnace making noise as it turns on, other noises are signaling your furnace should get immediate professional help.

Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating specialists are here to assist with the best furnace repair in Reinholds, Pennsylvania.

1. Furnace Makes a Banging Sound

You could have a critical situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a few problems. These range from gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s critical to set annual furnace maintenance with County Line Mechanical LLC. One of the jobs our technicians do during this work 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 fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any fractures in it can leak carbon monoxide, which is regularly emitted outside. This hazardous gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, County Line Mechanical LLC urges you to turn it off and reaching us at 717-216-0846. Excessive natural gas in your furnace or a fractured heat exchanger are critical problems that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver hot air throughout your home. If the ductwork wasn’t designed correctly or is getting old, it can be loud when your furnace runs. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with County Line Mechanical LLC at 717-216-0846 and we’ll determine the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the correct voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes warm or cooled air across your home, and a capacitor, which turns on 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 may be the result of something small, like a loose screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists at 717-216-0846 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to tell you it needs some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubricated. We know that maintenance sometimes slips your mind, but our technicians can get your furnace heating quietly again quickly.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You might also notice whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still hearing noise, County Line Mechanical LLC can help. It’s important to get loose ductwork fixed quickly, as it can create comfort troubles in your house and drive up your energy bills.

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 an issue with your furnace’s blower. Shut down your furnace off instantly and call our pros at 717-216-0846 for help.

When you’re hearing an atypical noise from your furnace, County Line Mechanical LLC is ready to support you. Contact us at 717-216-0846 to request your furnace repair appointment today.