When your furnace is operating properly, it should give warmth without making too much disruption. While it’s expected to hear your furnace making noise as it turns on, other noises are signaling your furnace should get 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 specialists are here to help with the best furnace repair in Menomonie and western Wisconsin, Wisconsin.

1. Furnace Makes a Banging Sound

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

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over time, so that’s why it’s essential to schedule seasonal furnace maintenance with Halverson Brothers Inc. One of the things our professionals perform during this appointment is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise after ignition is delayed. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can leak carbon monoxide, which is normally emitted away from your home. This hazardous gas can be fatal in large concentrations.

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

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver heated air across your home. If the ductwork wasn’t designed right or is aging, it can be loud when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Halverson Brothers Inc at 715-352-4052 and we’ll determine the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually indicates an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the correct 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 sends warm or cold air across your space, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be related to something little, like a loose screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating specialists at 715-352-4052 for help.

4. Furnace Squeals

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 last couple of years, belts could be worn down or a bearing may need to be lubricated. We realize that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You could also be aware of whistling while the furnace is working if a floor vent isn’t secure. If you’ve looked at your vents but are still sensing whistling, Halverson Brothers Inc can provide support. It’s important to get loose ductwork repaired fast, because it can result in comfort troubles in your house and inflate your utility expenses.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal racket usually means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and reach us at 715-352-4052 for help.

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