When your furnace is working like it should, it should provide warm air without creating too much disruption. While it’s normal to catch your furnace making noise as it starts up, other noises are showing your furnace should get immediate professional support.

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

1. Furnace Makes Banging or Knocking Sounds

You may have an urgent problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a few problems. These range from gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty as time passes, so that’s why it’s essential to schedule routine furnace maintenance with HCE Systems. One of the jobs our technicians do during this service is clean your furnace’s burners. When this piece gets grubby, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any breaks in it can emit carbon monoxide, which is normally released outdoors. This dangerous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, HCE Systems urges you to turn it off and reaching us at 276-302-0076. Significant natural gas in your furnace or a cracked heat exchanger are serious issues that require immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air throughout your residence. If the ductwork wasn’t installed right or is getting old, it can be noisy when your furnace is heating. This can be the problem if your furnace makes a banging noise when it shuts off. Call HCE Systems at 276-302-0076 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace depends on an internal transformer to work on the correct 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 moves heated or cooled air around your rooms, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be the result of something minor, like an unsecure screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and getting in touch with our heating specialists at 276-302-0076 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to tell you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing could need to be greased. We realize that maintenance frequently slips your mind, but our techs can get your furnace operating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also be aware of whistling while the furnace is operating if a floor vent isn’t tight. If you’ve looked at your vents but are still sensing noise, HCE Systems can help. It’s important to get loose ductwork repaired fast, because it can result in comfort troubles in your house and drive up your heating expenses.

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 racket usually means there’s trouble with your furnace’s blower. Turn off your furnace off promptly and reach our professionals at 276-302-0076 for support.

When you’re getting a strange noise from your furnace, HCE Systems is here to help. Contact us at 276-302-0076 to schedule your furnace repair appointment now.