When your furnace is working correctly, it should deliver warmth without creating too much disruption. While it’s normal to catch your furnace making noise as it starts up, other disruptions are indicating your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making an atypical noise, our friendly heating pros are here to assist with the best furnace repair in Hodgenville, Kentucky.

1. Furnace Making a Banging Noise

You could have an urgent situation 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 couple of problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over time, so that’s why it’s important to schedule routine furnace maintenance with Phelps Heating & Cooling, Inc.. One of the jobs our pros do during this work is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The ensuing gas buildup might fracture your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can discharge carbon monoxide, which is ordinarily emitted outside. This hazardous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Phelps Heating & Cooling, Inc. urges you to turn it off and calling us at 270-358-3167. Excessive natural gas in your furnace or a cracked heat exchanger are serious troubles that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move warm air across your home. If the ductwork wasn’t installed properly or is aging, it can be loud when your furnace runs. This may be the problem if your furnace makes a banging noise when it shuts off. Contact Phelps Heating & Cooling, Inc. at 270-358-3167 and we’ll figure out 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 often means there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the correct voltage. If wires or the box is loose, you may notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes hot or cooled air around your house, and a capacitor, which triggers the motor. If either of these parts are going out, 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 due to something minor, like an unsecure screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and getting in touch with our heating pros at 270-358-3167 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it requires some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing could need to be greased. We realize that maintenance sometimes slips your mind, but our professionals can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve checked your vents but are still noticing noise, Phelps Heating & Cooling, Inc. can assist you. It’s essential to get loose ductwork fixed without delay, because it can make comfort issues in your home and inflate your heating expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal noise often means there’s a problem with your furnace’s blower. Shut down your furnace off immediately and call us at 270-358-3167 for support.

When you’re getting an atypical noise from your furnace, Phelps Heating & Cooling, Inc. is available to provide assistance. Contact us at 270-358-3167 to request your furnace repair appointment right away.