When your furnace is working correctly, it should provide warm air without generating too much noise. While it’s normal to hear your furnace making noise as it begins running, other sounds are indicating your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making an atypical noise, our friendly heating specialists are here to assist with the best furnace repair in Lake Worth, Florida.

1. Furnace Making a Banging Noise

You may have a serious problem on your hands if you’re detecting 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 increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over time, so that’s why it’s critical to schedule seasonal furnace maintenance with Smyth Air Conditioning. One of the things our pros do during this work is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup may crack your furnace’s heat exchanger, where natural gas changes into warm air. Any breaks in it can leak 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, Smyth Air Conditioning urges you to turn it off and calling us at 561-533-6066. Excessive natural gas in your furnace or a cracked heat exchanger are dangerous problems that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver hot air throughout your home. If the ductwork wasn’t installed properly or is getting old, it can be loud when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Contact Smyth Air Conditioning at 561-533-6066 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 usually is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to work on the right 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 uses a blower motor, which distributes heated or cold air across your rooms, and a capacitor, which triggers the motor. If either of these components 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 a loose screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 561-533-6066 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to get your attention it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubed. We are aware that maintenance frequently slips your mind, but our techs can get your furnace operating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s likely the result 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 hearing noise, Smyth Air Conditioning can help. It’s essential to get loose ductwork fixed without delay, since it can make comfort issues in your residence and drive up your energy bills.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal racket usually means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and call our professionals at 561-533-6066 for assistance.

When you’re getting a strange noise from your furnace, Smyth Air Conditioning is here to support you. Contact us at 561-533-6066 to book your furnace repair appointment now.