When your furnace is running properly, it should give warmth without generating too much noise. While it’s common to catch your furnace making noise as it begins running, other sounds are showing your furnace requires immediate professional support.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making an odd noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Wausau, Wisconsin.

1. Furnace Makes a Banging Sound

You could have a critical problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These include gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s critical to set annual furnace maintenance with Gilray Heating and Cooling. One of the jobs our technicians do during this work is clean your furnace’s burners. When this component gets grimy, you could hear your furnace making a loud rumbling noise when ignition is delayed. The following gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can leak carbon monoxide, which is ordinarily emitted outside. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Gilray Heating and Cooling urges you to turn it off and reaching us at 715-301-0727. Too much natural gas in your furnace or a cracked heat exchanger are dangerous troubles that should get immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move heated air throughout your residence. If the ductwork wasn’t installed right or is aging, it can be loud when your furnace is heating. This could be the case if your furnace makes a banging noise when it shuts off. Contact Gilray Heating and Cooling at 715-301-0727 and we’ll determine the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to work on the proper voltage. If wires or the box is loose, you might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves heated or cooled air throughout your residence, and a capacitor, which triggers the motor. If either of these parts are going out, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be the result of something small, like a loose screw, or something major, like a broken part. In either case, we urge you to shut your furnace off and calling our heating specialists at 715-301-0727 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to get your attention it requires some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubed. We are aware that maintenance sometimes slips your mind, but our pros can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also be aware of whistling while the furnace is operating if a floor vent is loose. If you’ve checked your vents but are still noticing whistling, Gilray Heating and Cooling can help. It’s critical to get loose ductwork repaired fast, as it can make comfort problems in your house and increase your utility costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal noise usually means there’s a problem with your furnace’s blower. Shut down your furnace off right away and contact us at 715-301-0727 for help.

When you’re noticing a strange noise from your furnace, Gilray Heating and Cooling is here to help. Contact us at 715-301-0727 to book your furnace repair appointment today.