When your furnace is running correctly, it should provide warm air without making too much sound. While it’s normal to catch your furnace making noise as it starts up, other sounds are showing your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they can be indicating. If your furnace is making a weird noise, our friendly heating professionals are here to assist with the best furnace repair in Elk River, Minnesota.

1. Furnace Making a Banging Noise

You could have a critical issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may signal 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 turns dirty as time passes, so that’s why it’s critical to set routine furnace maintenance with Home Comfort Heating & Air. One of the tasks our technicians perform during this work is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup can break your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can emit carbon monoxide, which is normally vented outside. This dangerous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Home Comfort Heating & Air urges you to turn it off and reaching us at 763-276-0617. Excessive natural gas in your furnace or a ruptured heat exchanger are critical troubles that should get prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air around your residence. If the ductwork wasn’t put in correctly or is getting dated, it can be noisy when your furnace runs. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Home Comfort Heating & Air at 763-276-0617 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually is telling you there’s an electrical issue, 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 hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends hot or cold air throughout your home, and a capacitor, which turns on the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something small, like an unsecure screw, or something critical, like a broken component. In either case, we urge you to shut your furnace off and calling our heating professionals at 763-276-0617 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s making an effort to alert you it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing may need to be greased. We are aware that maintenance sometimes slips your mind, but our techs can get your furnace heating quietly again rapidly.

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 notice whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still noticing whistling, Home Comfort Heating & Air can provide support. It’s essential to get loose ductwork fixed fast, since it can make comfort troubles in your residence and inflate your gas expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal sound typically means there’s an issue with your furnace’s blower. Turn off your furnace off right away and reach our pros at 763-276-0617 for assistance.

When you’re noticing a weird noise from your furnace, Home Comfort Heating & Air is here to provide assistance. Contact us at 763-276-0617 to book your furnace repair appointment right away.