When your furnace is operating properly, it should give warm air without generating too much noise. While it’s expected to notice your furnace making noise as it starts up, other sounds are showing your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they can be indicating. If your furnace is making a strange noise, our friendly heating specialists are here to assist with the best furnace repair in Hendersonville, North Carolina.

1. Furnace Making a Banging Noise

You might have an urgent problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may signal there could be a couple of problems. These involve gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over time, so that’s why it’s essential to set routine furnace maintenance with Superior Comfort Systems. One of the things our techs do during this work is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup might break your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can discharge carbon monoxide, which is ordinarily emitted away from your home. This toxic gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Superior Comfort Systems urges you to turn it off and reaching us at 828-202-7025. Excessive natural gas in your furnace or a fractured heat exchanger are dangerous issues that should get fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver hot air across your home. If the ductwork wasn’t put in correctly or is aging, it can be loud when your furnace runs. This may be the issue if your furnace makes a banging noise when it shuts off. Call Superior Comfort Systems at 828-202-7025 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently means there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the proper voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or chilly air throughout your residence, and a capacitor, which starts the motor. If either of these components 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 could be related to something little, like an unfastened screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 828-202-7025 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to tell you it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be lubricated. We are aware that maintenance often slips your mind, but our techs can get your furnace operating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also be aware of whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still hearing whistling, Superior Comfort Systems can help. It’s critical to get loose ductwork repaired fast, as it can make comfort problems in your house and drive up your heating 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 trouble with your furnace’s blower. Shut down your furnace off right away and reach us at 828-202-7025 for assistance.

When you’re hearing an atypical noise from your furnace, Superior Comfort Systems is here to provide assistance. Contact us at 828-202-7025 to book your furnace repair appointment today.