When your furnace is operating correctly, it should give warm air without creating too much sound. While it’s expected to hear your furnace making noise as it turns on, other noises are indicating your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they might be signaling. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in West Valley City, Utah.

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 indicate there could be several problems. These include gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over the years, so that’s why it’s important to schedule seasonal furnace maintenance with Select Comfort Systems. One of the jobs our technicians complete during this work is clean your furnace’s burners. When this part gets grubby, you may hear your furnace making a loud rumbling noise when ignition takes more time. The subsequent gas buildup might break your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can leak carbon monoxide, which is ordinarily emitted outside. This dangerous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Select Comfort Systems advises turning it off and contacting us at 801-305-4777. Excessive natural gas in your furnace or a ruptured heat exchanger are dangerous problems that should get immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move warm air across your home. If the ductwork wasn’t installed properly or is getting dated, it can be loud when your furnace is on. This may be the case if your furnace makes a banging noise when it shuts off. Call 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 typically means there’s an electrical situation, 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 is loose, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cold air throughout your space, and a capacitor, which turns on the motor. If either of these pieces are failing, 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 related to something small, like an unsecure screw, or something major, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating specialists at 801-305-4777 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to tell you it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing may need to be lubed. We are aware that maintenance often slips your mind, but our techs can get your furnace heating quietly again fast.

5. Furnace Making a Whistling Noise

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 operating if a floor vent isn’t secure. If you’ve looked at your vents but are still hearing noise, Select Comfort Systems can assist you. It’s essential to get loose ductwork repaired quickly, because it can result in comfort troubles in your house and increase your gas bills.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound usually means there’s a problem with your furnace’s blower. Shut down your furnace off immediately and reach our professionals at 801-305-4777 for help.

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