When your furnace is working correctly, it should give heat without creating too much disruption. While it’s common to notice your furnace making noise as it begins running, other noises are showing your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they could mean. If your furnace is making a strange noise, our friendly heating pros are here to assist with the best furnace repair in Phoenix, Arizona.

1. Furnace Making a Banging Noise

You might have a serious issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a few problems. These involve gas building up 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 book seasonal furnace maintenance with Integrity AC & Heating LLC. One of the jobs our professionals complete during this appointment is clean your furnace’s burners. When this piece gets dirty, you might hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup can break your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can leak carbon monoxide, which is regularly emitted away from your home. This dangerous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Integrity AC & Heating LLC recommends turning it off and contacting us at 602-971-0567. Excessive natural gas in your furnace or a fractured heat exchanger are dangerous problems that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver warm air around your home. If the ductwork wasn’t installed correctly or is aging, it can be noisy when your furnace runs. This may 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 pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you may notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or chilly air around your house, and a capacitor, which starts the motor. If either of these pieces 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 could be due to something small, like a loose screw, or something major, like a broken part. In either case, we urge you to shut your furnace off and calling our heating pros at 602-971-0567 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing may need to be greased. We know that maintenance sometimes slips your mind, but our techs can get your furnace running quietly again quickly.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also hear whistling while the furnace is running if a floor vent isn’t secure. If you’ve examined your vents but are still sensing whistling, Integrity AC & Heating LLC can provide support. It’s essential to get loose ductwork repaired fast, since it can result in comfort issues in your house and increase your utility costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good 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. Switch off your furnace off immediately and contact our pros at 602-971-0567 for help.

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