When your furnace is operating like it should, it should provide heat without making too much noise. While it’s expected to catch your furnace making noise as it starts up, other noises are showing your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they could be indicating. If your furnace is making a weird noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Phoenix, Arizona.

1. Furnace Makes a Banging Sound

You could have an urgent situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a couple of problems. These involve gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s essential to set yearly furnace maintenance with Integrity AC & Heating LLC. One of the tasks our professionals perform during this work 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 following gas buildup may break your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can discharge carbon monoxide, which is regularly emitted outdoors. This hazardous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Integrity AC & Heating LLC urges you to turn it off and contacting us at 602-971-0567. Significant natural gas in your furnace or a fractured heat exchanger are critical problems that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move hot air across your residence. If the ductwork wasn’t installed right or is getting dated, it can make a lot of noise when your furnace runs. This could be the case if your furnace makes a banging noise when it shuts off. Contact Integrity AC & Heating LLC at 602-971-0567 and we’ll determine the problem.

2. Furnace Buzzes Constantly

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

Your furnace depends on an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you may hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cooled air throughout your home, and a capacitor, which turns on the motor. If either of these parts are failing, they will buzz when the furnace switches on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it can be related to something small, like an unsecure screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and contacting our heating specialists at 602-971-0567 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to tell you it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be lubed. We are aware that maintenance often slips your mind, but our pros can get your furnace running quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, Integrity AC & Heating LLC can assist you. It’s important to get loose ductwork fixed fast, since it can create comfort problems in your residence and drive up your gas expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise frequently means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and contact us at 602-971-0567 for help.

When you’re hearing an uncommon noise from your furnace, Integrity AC & Heating LLC is available to support you. Contact us at 602-971-0567 to request your furnace repair appointment right away.