When your furnace is operating properly, it should deliver warm air without making too much sound. While it’s normal to catch your furnace making noise as it turns on, other noises are showing your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they could be indicating. If your furnace is making a weird noise, our friendly heating specialists are here to assist with the best furnace repair in Mount Pleasant, South Carolina.

1. Furnace Makes Banging or Knocking Sounds

You might have a critical issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a few problems. These involve gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over time, so that’s why it’s important to set routine furnace maintenance with Olde Towne Heating & Air. One of the things our pros complete during this appointment is clean your furnace’s burners. When this component gets grubby, you might hear your furnace making a loud rumbling noise if ignition is delayed. The ensuing gas buildup may break your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can leak carbon monoxide, which is regularly released away from your home. This toxic gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Olde Towne Heating & Air advises turning it off and calling us at 843-485-0967. Excessive natural gas in your furnace or a fractured heat exchanger are serious issues that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver hot air throughout your home. If the ductwork wasn’t put in right or is aging, it can be loud when your furnace runs. This can be the issue if your furnace makes a banging noise when it shuts off. Contact Olde Towne Heating & Air at 843-485-0967 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t hesitate to call 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 work on the correct voltage. If wires or the box isn’t tight enough, you could hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves heated or cold air across your space, and a capacitor, which starts the motor. If either of these pieces are failing, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be due to something little, like a loose screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 843-485-0967 for help.

4. Furnace Making a Squealing Noise

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

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve examined your vents but are still noticing sound, Olde Towne Heating & Air can provide support. It’s critical to get loose ductwork taken care of without delay, as it can make comfort problems in your residence and inflate your energy costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise frequently means there’s a problem with your furnace’s blower. Turn off your furnace off instantly and contact our professionals at 843-485-0967 for assistance.

When you’re getting a weird noise from your furnace, Olde Towne Heating & Air is ready to help. Contact us at 843-485-0967 to book your furnace repair appointment today.