When your furnace is operating correctly, it should provide warmth without creating too much noise. While it’s expected to hear your furnace making noise as it begins running, other disruptions are indicating your furnace requires immediate professional help.

Here are some of the most common furnace noises and what they could mean. If your furnace is making a weird noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Manassas, Virginia.

1. Furnace Makes a Banging Sound

You could have an urgent issue on your hands if you’re detecting 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 include gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over time, so that’s why it’s critical to book annual furnace maintenance with Air-Right Energy Design. One of the tasks our pros perform during this appointment is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise if ignition takes more time. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can emit carbon monoxide, which is ordinarily vented outdoors. This toxic gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Air-Right Energy Design urges you to turn it off and contacting us at 703-260-1148. Excessive natural gas in your furnace or a fractured heat exchanger are dangerous issues that should get immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver hot air across your home. If the ductwork wasn’t designed right or is getting old, it can make a lot of noise when your furnace is heating. This could be the problem if your furnace makes a banging noise when it shuts off. Call Air-Right Energy Design at 703-260-1148 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the proper 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 distributes hot or cold air across your space, and a capacitor, which turns on the motor. If either of these pieces are failing, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be the result of something minor, like a loose screw, or something critical, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating specialists at 703-260-1148 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to alert you it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing might need to be greased. We realize that maintenance frequently slips your mind, but our pros can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You might also notice whistling while the furnace is working if a floor vent isn’t secure. If you’ve examined your vents but are still noticing noise, Air-Right Energy Design can assist you. It’s critical to get loose ductwork repaired quickly, because it can create comfort issues in your residence and inflate your utility bills.

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 sound typically means there’s trouble with your furnace’s blower. Turn off your furnace off instantly and contact our professionals at 703-260-1148 for help.

When you’re getting an atypical noise from your furnace, Air-Right Energy Design is here to help. Contact us at 703-260-1148 to request your furnace repair appointment now.