When your furnace is operating correctly, it should provide warm air without creating too much disruption. While it’s common to hear your furnace making noise as it starts up, other noises are signaling your furnace should get immediate professional assistance.

Here are some of the most common furnace noises and what they could mean. If your furnace is making a strange noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Front Royal, 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 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 becomes grimy over time, so that’s why it’s important to set routine furnace maintenance with Dave's Diversified Services. One of the things our technicians do during this appointment is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise if ignition is delayed. The subsequent gas buildup may break your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can emit carbon monoxide, which is regularly released outdoors. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Dave's Diversified Services recommends turning it off and reaching us at 540-636-3396. Significant natural gas in your furnace or a ruptured heat exchanger are dangerous issues that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move heated air throughout your house. If the ductwork wasn’t put in right or is aging, it can be loud when your furnace runs. This can be the case 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 Making a Buzzing Noise

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

Your furnace relies on an internal transformer to operate on the correct voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot or cooled air around your space, and a capacitor, which turns on the motor. If either of these pieces are failing, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be related to something small, like an unsecure screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 540-636-3396 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to alert you it requires some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing could need to be greased. We are aware that maintenance often slips your mind, but our pros can get your furnace running quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also notice whistling while the furnace is on if a floor vent isn’t secure. If you’ve checked your vents but are still sensing whistling, Dave's Diversified Services can provide support. It’s important to get loose ductwork fixed quickly, since it can create comfort problems in your home and inflate your utility costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal noise typically means there’s an issue with your furnace’s blower. Shut down your furnace off immediately and contact our professionals at 540-636-3396 for support.

When you’re hearing an uncommon noise from your furnace, Dave's Diversified Services is here to provide assistance. Contact us at 540-636-3396 to request your furnace repair appointment right away.