When your furnace is working correctly, it should provide warmth without making too much sound. While it’s common to notice your furnace making noise as it turns on, other sounds are indicating your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they could be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to assist with the best furnace repair in Front Royal, Virginia.

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over the years, so that’s why it’s essential to schedule annual furnace maintenance with Dave's Diversified Services. One of the jobs our professionals complete during this work is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise when ignition takes more time. The ensuing gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can emit carbon monoxide, which is regularly emitted outdoors. This toxic gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Dave's Diversified Services advises turning it off and calling us at 540-636-3396. Excessive natural gas in your furnace or a cracked heat exchanger are dangerous troubles that should get prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move hot air across your residence. If the ductwork wasn’t put in correctly or is getting old, it can be loud when your furnace runs. This can be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Dave's Diversified Services at 540-636-3396 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace depends on an internal transformer to operate on the right voltage. If wires or the box is loose, you may 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 rooms, and a capacitor, which turns on the motor. If either of these pieces 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 can be the result of something little, like a loose screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 540-636-3396 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to get your attention it could use some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing may need to be greased. We realize that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also be aware of whistling while the furnace is on if a floor vent isn’t tight. If you’ve checked your vents but are still sensing noise, Dave's Diversified Services can help. It’s important to get loose ductwork taken care of quickly, because it can create comfort issues in your home and drive up your gas expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound usually means there’s trouble with your furnace’s blower. Switch off your furnace off immediately and reach our pros at 540-636-3396 for support.

When you’re hearing an uncommon noise from your furnace, Dave's Diversified Services is ready to support you. Contact us at 540-636-3396 to request your furnace repair appointment now.