When your furnace is running correctly, it should provide warm air without creating too much disruption. While it’s common to catch your furnace making noise as it starts up, other noises are showing your furnace requires immediate professional assistance.

Here are some of the most common furnace noises and what they can mean. If your furnace is making an atypical noise, our friendly heating professionals are here to fix the problem with the best furnace repair in West Valley City, Utah.

1. Furnace Makes Banging or Knocking Sounds

You could have an urgent problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a few problems. These include gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty as time passes, so that’s why it’s critical to set annual furnace maintenance with Select Comfort Systems. One of the jobs our pros complete during this work is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup can fracture your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can leak carbon monoxide, which is ordinarily vented outdoors. This dangerous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Select Comfort Systems recommends turning it off and contacting us at 801-305-4777. Excessive natural gas in your furnace or a broken heat exchanger are serious issues that should get immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver warm air throughout your house. If the ductwork wasn’t put in correctly or is getting dated, it can make a lot of noise when your furnace is heating. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with Select Comfort Systems at 801-305-4777 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace relies on an internal transformer to work on the right voltage. If wires or the box is loose, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes warm or chilly air across your rooms, and a capacitor, which starts the motor. If either of these parts are fading, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be the result of something small, like an unfastened screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and calling our heating specialists at 801-305-4777 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to alert you it needs some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing might need to be lubed. We know that maintenance frequently slips your mind, but our pros can get your furnace running quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent isn’t tight. If you’ve checked your vents but are still hearing sound, Select Comfort Systems can provide support. It’s critical to get loose ductwork repaired without delay, as it can result in comfort problems in your residence and drive up your heating costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise typically means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and call us at 801-305-4777 for support.

When you’re noticing an uncommon noise from your furnace, Select Comfort Systems is ready to provide assistance. Contact us at 801-305-4777 to request your furnace repair appointment right away.