When your furnace is operating properly, it should deliver warm air without making too much disruption. While it’s expected to notice your furnace making noise as it begins running, other disruptions are showing your furnace needs immediate professional assistance.

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

1. Furnace Makes Banging or Knocking Sounds

You may have a serious problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a couple of problems. These range from gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets dirty as time passes, so that’s why it’s essential to book seasonal furnace maintenance with Halverson Brothers Inc. One of the tasks our technicians do during this work is clean your furnace’s burners. When this part gets grubby, you could hear your furnace making a loud rumbling noise if ignition is delayed. The resulting gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can discharge carbon monoxide, which is normally vented outside. This dangerous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Halverson Brothers Inc advises turning it off and reaching us at 715-352-4052. Too much natural gas in your furnace or a fractured heat exchanger are dangerous troubles that necessitate immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move hot air throughout your home. If the ductwork wasn’t installed correctly or is aging, it can be noisy when your furnace is heating. This might be the problem if your furnace makes a banging noise when it shuts off. Contact Halverson Brothers Inc at 715-352-4052 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to operate on the proper voltage. If wires or the box isn’t tight enough, you may notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes warm 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 starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be related to something little, like an unfastened screw, or something critical, like a broken component. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 715-352-4052 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to alert you it requires some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be lubed. We know that maintenance often slips your mind, but our techs can get your furnace running quietly again quickly.

5. Furnace Whistles

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 working if a floor vent is loose. If you’ve looked at your vents but are still noticing sound, Halverson Brothers Inc can provide support. It’s essential to get loose ductwork repaired fast, because it can make comfort problems in your home and drive up your heating expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound frequently means there’s a problem with your furnace’s blower. Turn off your furnace off immediately and contact us at 715-352-4052 for help.

When you’re noticing a weird noise from your furnace, Halverson Brothers Inc is here to support you. Contact us at 715-352-4052 to book your furnace repair appointment today.