When your furnace is working like it should, it should deliver warm air without making too much noise. While it’s expected to catch your furnace making noise as it turns on, other noises are showing your furnace needs immediate professional help.

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

1. Furnace Makes Banging or Knocking Sounds

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

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over time, so that’s why it’s important to set yearly furnace maintenance with True Temp Heating & Air Conditioning. One of the tasks our technicians complete during this appointment is clean your furnace’s burners. When this piece gets dirty, you may hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup might break your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can discharge carbon monoxide, which is regularly emitted outdoors. This hazardous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, True Temp Heating & Air Conditioning urges you to turn it off and reaching us at 706-695-7492. Excessive natural gas in your furnace or a fractured heat exchanger are hazardous problems that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move hot air around your home. If the ductwork wasn’t designed correctly or is getting dated, it can be noisy when your furnace is on. This can be the issue if your furnace makes a banging noise when it shuts off. Contact True Temp Heating & Air Conditioning at 706-695-7492 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to run on the right voltage. If wires or the box isn’t tight enough, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or cold air across your space, and a capacitor, which triggers the motor. If either of these components are going out, 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 can be related to something small, like a loose screw, or something major, like a broken component. In either case, we advise shutting your furnace off and calling our heating specialists at 706-695-7492 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to alert you it needs some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing may need to be lubricated. We are aware that maintenance often slips your mind, but our techs can get your furnace heating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely the result 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 hearing sound, True Temp Heating & Air Conditioning can provide support. It’s important to get loose ductwork taken care of fast, as it can make comfort issues in your residence and inflate your energy costs.

6. Furnace Making a Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal noise usually means there’s a problem with your furnace’s blower. Shut down your furnace off now and call our pros at 706-695-7492 for assistance.

When you’re noticing a strange noise from your furnace, True Temp Heating & Air Conditioning is ready to help. Contact us at 706-695-7492 to schedule your furnace repair appointment right away.