When your furnace is running correctly, it should provide heat without making too much noise. While it’s expected to hear your furnace making noise as it turns on, other sounds are indicating your furnace needs immediate professional support.

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

1. Furnace Making a Banging Noise

You could have an urgent issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a few problems. These include gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over time, so that’s why it’s essential to schedule yearly furnace maintenance with Point Heating & Cooling. One of the tasks our technicians perform during this work is clean your furnace’s burners. When this component gets dirty, you may hear your furnace making a loud rumbling noise when ignition takes more time. The ensuing gas buildup might fracture your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can emit carbon monoxide, which is normally vented outdoors. This hazardous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Point Heating & Cooling urges you to turn it off and calling us at 715-504-0533. Too much natural gas in your furnace or a fractured heat exchanger are serious issues that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move warm air across your residence. If the ductwork wasn’t installed right or is aging, it can make a lot of noise when your furnace is heating. This might be the case if your furnace makes a banging noise when it shuts off. Contact Point Heating & Cooling at 715-504-0533 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the right voltage. If wires or the box is loose, you might notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or cold air across your rooms, and a capacitor, which triggers the motor. If either of these components are failing, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something little, like a loose screw, or something major, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 715-504-0533 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to alert you it needs some TLC. If you’ve skipped furnace maintenance the past few 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 heating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also be aware of whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still sensing noise, Point Heating & Cooling can provide support. It’s critical to get loose ductwork repaired without delay, since it can make comfort issues in your home and increase your heating costs.

6. Furnace Making a Grinding Noise

It’s not an encouraging 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 immediately and call our professionals at 715-504-0533 for support.

When you’re hearing a strange noise from your furnace, Point Heating & Cooling is ready to provide assistance. Contact us at 715-504-0533 to book your furnace repair appointment today.