When your furnace is operating correctly, it should give warmth without making too much disruption. While it’s expected to catch your furnace making noise as it starts up, other sounds are showing your furnace requires immediate professional support.

Here are some of the most common furnace noises and what they could be signaling. If your furnace is making an atypical noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Tucker, Georgia.

1. Furnace Makes Banging or Knocking Sounds

You might have a serious problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be several problems. These range from gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s essential to schedule yearly furnace maintenance with ACS Heating and Air Conditioning. One of the things our techs perform during this service is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The ensuing gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can emit carbon monoxide, which is ordinarily vented outdoors. This toxic gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, ACS Heating and Air Conditioning advises turning it off and calling us at 770-450-1539. Significant natural gas in your furnace or a cracked heat exchanger are serious troubles that necessitate immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver hot air across your residence. If the ductwork wasn’t designed correctly or is getting old, it can be noisy when your furnace is heating. This can 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 determine the problem.

2. Furnace Buzzes Constantly

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

Your furnace relies on an internal transformer to operate on the proper voltage. If wires or the box is loose, you might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or chilly air across your house, and a capacitor, which triggers the motor. If either of these components are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be due to something small, like an unfastened screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 770-450-1539 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, 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 might need to be lubed. We are aware that maintenance often slips your mind, but our techs can get your furnace operating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also notice whistling while the furnace is running if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing sound, ACS Heating and Air Conditioning can assist you. It’s important to get loose ductwork taken care of quickly, since it can create comfort issues in your home and drive up your utility costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal sound often means there’s a problem with your furnace’s blower. Switch off your furnace off immediately and reach us at 770-450-1539 for support.

When you’re getting an uncommon noise from your furnace, ACS Heating and Air Conditioning is here to support you. Contact us at 770-450-1539 to schedule your furnace repair appointment right away.