When your furnace is running like it should, it should provide warm air without creating too much disruption. While it’s expected to hear your furnace making noise as it starts up, other noises are signaling your furnace requires immediate professional support.

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

1. Furnace Makes Banging or Knocking Sounds

You could have an urgent situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a few problems. These involve gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over time, so that’s why it’s critical to book yearly furnace maintenance with Select Comfort Systems. One of the jobs our techs complete during this service is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise when ignition is delayed. The following gas buildup can break your furnace’s heat exchanger, where natural gas transforms into warmth. Any breaks in it can leak carbon monoxide, which is normally vented away from your home. This hazardous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Select Comfort Systems urges you to turn it off and calling us at 801-305-4777. Significant natural gas in your furnace or a broken heat exchanger are serious problems that should get prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move warm air around your home. If the ductwork wasn’t designed properly or is getting dated, it can be noisy when your furnace runs. This can be the problem if your furnace makes a banging noise when it shuts off. Contact 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 hesitate to call us. A buzzing sound frequently means there’s an electrical problem, 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 detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes heated or cold air across your residence, and a capacitor, which turns on the motor. If either of these pieces are failing, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it could be due to something little, like an unsecure screw, or something serious, like a broken piece. In either case, we advise shutting your furnace off and getting in touch with our heating professionals 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 on, 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 may need to be greased. We know that maintenance frequently slips your mind, but our technicians can get your furnace operating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, Select Comfort Systems can help. It’s important to get loose ductwork taken care of without delay, because it can result in comfort issues in your house and inflate your energy bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal noise often means there’s an issue with your furnace’s blower. Shut down your furnace off right away and contact our professionals at 801-305-4777 for help.

When you’re hearing an atypical noise from your furnace, Select Comfort Systems is ready to help. Contact us at 801-305-4777 to schedule your furnace repair appointment today.