When your furnace is working correctly, it should deliver warmth without generating too much disruption. While it’s common to notice your furnace making noise as it turns on, other sounds are showing your furnace should get immediate professional help.

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

1. Furnace Makes a Banging Sound

You could have a critical problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy as time passes, so that’s why it’s essential to set seasonal furnace maintenance with Olde Towne Heating & Air. One of the tasks our pros complete during this service is clean your furnace’s burners. When this component gets grubby, you could hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup might break your furnace’s heat exchanger, where natural gas changes into warm air. Any fractures in it can emit carbon monoxide, which is normally emitted outdoors. This dangerous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Olde Towne Heating & Air advises turning it off and calling us at 843-485-0967. Too much natural gas in your furnace or a broken heat exchanger are critical problems that should get immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide heated air around your house. If the ductwork wasn’t put in right or is getting old, it can be loud when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Contact Olde Towne Heating & Air at 843-485-0967 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

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

Your furnace relies on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you could detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes heated or cooled air throughout your residence, and a capacitor, which triggers the motor. If either of these pieces are failing, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be the result of something little, like a loose screw, or something serious, like a broken component. In either case, we urge you to shut your furnace off and contacting our heating specialists at 843-485-0967 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to get your attention it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing could need to be lubricated. We realize that maintenance frequently slips your mind, but our pros can get your furnace operating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You could also be aware of whistling while the furnace is on if a floor vent isn’t tight. If you’ve examined your vents but are still sensing sound, Olde Towne Heating & Air can help. It’s critical to get loose ductwork fixed quickly, since it can result in comfort problems in your residence and inflate your gas expenses.

6. Furnace Making a Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal noise often means there’s an issue with your furnace’s blower. Shut down your furnace off now and call our pros at 843-485-0967 for help.

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