When your furnace is running like it should, it should give warmth without creating too much sound. While it’s expected to notice your furnace making noise as it begins running, other disruptions are showing your furnace needs immediate professional assistance.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making a weird noise, our friendly heating professionals are here to assist with the best furnace repair in Tucker, Georgia.

1. Furnace Making a Banging Noise

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 may signal there could be several problems. These include gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty as time passes, so that’s why it’s important to schedule routine furnace maintenance with ACS Heating and Air Conditioning. One of the tasks our technicians complete during this service is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes longer than normal. The ensuing gas buildup can crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any breaks in it can discharge carbon monoxide, which is ordinarily emitted away from your home. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, ACS Heating and Air Conditioning recommends turning it off and calling us at 770-450-1539. Too much natural gas in your furnace or a cracked heat exchanger are serious problems that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air around your home. If the ductwork wasn’t designed properly or is aging, it can make a lot of noise when your furnace is on. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with ACS Heating and Air Conditioning at 770-450-1539 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 often means 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 is loose, you might detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cold air throughout your home, and a capacitor, which starts the motor. If either of these components are fading, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something minor, like an unfastened screw, or something serious, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating professionals at 770-450-1539 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to tell you it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing may need to be lubed. We know that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent isn’t tight. If you’ve checked your vents but are still noticing sound, ACS Heating and Air Conditioning can help. It’s important to get loose ductwork repaired quickly, as it can result in comfort troubles in your house and drive up your utility expenses.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise typically means there’s a problem with your furnace’s blower. Shut down your furnace off instantly and call us at 770-450-1539 for help.

When you’re hearing an atypical noise from your furnace, ACS Heating and Air Conditioning is available to support you. Contact us at 770-450-1539 to book your furnace repair appointment right away.