When your furnace is operating like it should, it should provide heat without generating too much sound. While it’s normal to hear your furnace making noise as it begins running, other disruptions are showing your furnace needs immediate professional assistance.

Here are some of the most common furnace noises and what they can be indicating. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in Hodgenville, Kentucky.

1. Furnace Makes a Banging Sound

You could have a serious problem 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 include gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over the years, so that’s why it’s important to schedule yearly furnace maintenance with Phelps Heating & Cooling, Inc.. One of the tasks our techs do during this service is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can leak carbon monoxide, which is ordinarily vented outdoors. This dangerous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Phelps Heating & Cooling, Inc. advises turning it off and contacting us at 270-358-3167. Excessive natural gas in your furnace or a ruptured heat exchanger are serious issues that necessitate prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide warm air throughout your house. If the ductwork wasn’t installed properly or is getting old, it can be noisy when your furnace is heating. This may be the case if your furnace makes a banging noise when it shuts off. Contact Phelps Heating & Cooling, Inc. at 270-358-3167 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound usually means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the correct 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 hot or cold air across your rooms, and a capacitor, which triggers the motor. If either of these components are fading, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be related to something minor, like an unsecure screw, or something major, like a broken component. In either case, we urge you to shut your furnace off and calling our heating professionals at 270-358-3167 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort 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 may need to be lubed. We know that maintenance frequently slips your mind, but our professionals can get your furnace operating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also hear whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still noticing whistling, Phelps Heating & Cooling, Inc. can provide support. It’s important to get loose ductwork fixed fast, as it can make comfort problems in your home and increase your heating bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise usually means there’s trouble with your furnace’s blower. Shut down your furnace off instantly and contact our pros at 270-358-3167 for support.

When you’re hearing a strange noise from your furnace, Phelps Heating & Cooling, Inc. is ready to provide assistance. Contact us at 270-358-3167 to request your furnace repair appointment today.