When your furnace is working properly, it should deliver warmth without making too much disruption. While it’s common to catch your furnace making noise as it turns on, other sounds are showing your furnace needs immediate professional help.

Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating specialists are here to help with the best furnace repair in Plover, Wisconsin.

1. Furnace Makes Banging or Knocking Sounds

You could have a critical issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be several problems. These involve gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over the years, so that’s why it’s important to set seasonal furnace maintenance with Point Heating & Cooling. One of the tasks our pros perform during this work is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise when ignition takes longer than normal. The following gas buildup can break your furnace’s heat exchanger, where natural gas turns into warmth. Any cracks in it can discharge carbon monoxide, which is ordinarily released outdoors. This toxic gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Point Heating & Cooling advises turning it off and reaching us at 715-504-0533. Excessive natural gas in your furnace or a ruptured heat exchanger are serious problems that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide warm air across your residence. If the ductwork wasn’t installed correctly or is getting dated, it can be noisy when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Get in touch with Point Heating & Cooling at 715-504-0533 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace uses an internal transformer to work 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 starts the motor. If either of these parts are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be related to something little, like a loose screw, or something critical, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists at 715-504-0533 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to get your attention it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn down or a bearing may need to be lubed. We realize that maintenance frequently slips your mind, but our pros can get your furnace heating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You might also notice whistling while the furnace is operating if a floor vent isn’t tight. If you’ve examined your vents but are still sensing sound, Point Heating & Cooling can provide support. It’s critical to get loose ductwork repaired fast, as it can make comfort issues in your home and increase your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal noise frequently means there’s a problem with your furnace’s blower. Turn off your furnace off right away and call our pros at 715-504-0533 for help.

When you’re getting a weird noise from your furnace, Point Heating & Cooling is ready to support you. Contact us at 715-504-0533 to book your furnace repair appointment right away.