When your furnace is operating like it should, it should provide warmth without generating too much noise. While it’s expected to notice your furnace making noise as it starts up, other sounds are indicating your furnace requires immediate professional support.

Here are some of the most frequent furnace noises and what they can mean. If your furnace is making an atypical noise, our friendly heating professionals are here to assist with the best furnace repair in Cape Coral, Florida.

1. Furnace Making a Banging Noise

You may have a serious situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of 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 over time, so that’s why it’s critical to schedule routine furnace maintenance with Comfort Zone, LLC. One of the tasks our techs do during this appointment is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise after ignition is delayed. The resulting gas buildup can crack your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can leak carbon monoxide, which is ordinarily vented away from your home. This dangerous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Comfort Zone, LLC urges you to turn it off and contacting us at 239-214-0411. Significant natural gas in your furnace or a cracked heat exchanger are dangerous problems that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move warm air around your residence. If the ductwork wasn’t installed properly or is getting old, 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 Comfort Zone, LLC at 239-214-0411 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to run 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 has a blower motor, which moves warm or cold air across your space, and a capacitor, which starts the motor. If either of these components are fading, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something minor, like an unfastened screw, or something critical, like a broken piece. In either case, we recommend shutting off your furnace and contacting our heating professionals at 239-214-0411 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to alert you it could use some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be greased. We realize that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also hear whistling while the furnace is on if a floor vent is loose. If you’ve checked your vents but are still hearing noise, Comfort Zone, LLC can provide support. It’s important to get loose ductwork repaired without delay, as it can result in comfort issues in your home and inflate your utility 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 frequently means there’s a problem with your furnace’s blower. Turn off your furnace off right away and reach our professionals at 239-214-0411 for support.

When you’re hearing an atypical noise from your furnace, Comfort Zone, LLC is ready to help. Contact us at 239-214-0411 to request your furnace repair appointment right away.