When your furnace is operating properly, it should deliver warmth without creating too much sound. While it’s expected to notice your furnace making noise as it turns on, other sounds are signaling your furnace needs immediate professional help.

Here are some of the most common furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to help with the best furnace repair in Woodbridge, Virginia.

1. Furnace Making a Banging Noise

You may have an urgent issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be a couple of problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over time, so that’s why it’s essential to set seasonal furnace maintenance with Fire & Ice HVAC. One of the jobs our technicians do during this appointment is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup may fracture your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can leak carbon monoxide, which is regularly released outdoors. This toxic gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Fire & Ice HVAC urges you to turn it off and contacting us at 703-595-4157. Significant natural gas in your furnace or a fractured heat exchanger are serious problems that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air throughout your residence. If the ductwork wasn’t designed properly or is aging, it can make a lot of noise when your furnace is heating. This might be the problem if your furnace makes a banging noise when it shuts off. Contact Fire & Ice HVAC at 703-595-4157 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you could hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves heated or cooled air around your house, and a capacitor, which triggers the motor. If either of these parts are fading, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something minor, like a loose screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and calling our heating pros at 703-595-4157 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to get your attention it needs some TLC. If you’ve skipped furnace maintenance recently, belts could be worn out or a bearing may need to be lubed. We realize that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing 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 is loose. If you’ve examined your vents but are still noticing sound, Fire & Ice HVAC can help. It’s essential to get loose ductwork repaired fast, since it can make comfort troubles in your residence and drive up your energy costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and reach our professionals at 703-595-4157 for assistance.

When you’re getting a weird noise from your furnace, Fire & Ice HVAC is here to help. Contact us at 703-595-4157 to schedule your furnace repair appointment right away.