When your furnace is operating like it should, it should provide warmth without creating too much noise. While it’s normal to catch your furnace making noise as it starts up, other disruptions are showing your furnace needs immediate professional support.

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

1. Furnace Making a Banging Noise

You may have a critical problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may signal there could be a few problems. These include gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s important to set yearly furnace maintenance with Integrity AC & Heating LLC. One of the jobs our technicians perform 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 takes longer than normal. The subsequent gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can discharge carbon monoxide, which is ordinarily emitted away from your home. This hazardous gas can be lethal 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 reaching us at 602-971-0567. Excessive natural gas in your furnace or a fractured heat exchanger are critical problems that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air around your residence. If the ductwork wasn’t installed right or is getting old, it can be noisy when your furnace runs. This might be the issue 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 Makes a Buzzing Sound

If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound often is telling you there’s an electrical situation, 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 needs to be tightened, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes heated or cold air across your home, and a capacitor, which starts the motor. If either of these pieces are fading, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be the result of something little, like an unsecure screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and contacting our heating professionals at 602-971-0567 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to tell you it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing might need to be lubricated. We know that maintenance often slips your mind, but our professionals can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is operating if a floor vent isn’t secure. If you’ve examined your vents but are still sensing noise, Integrity AC & Heating LLC can provide support. It’s critical to get loose ductwork repaired quickly, as it can make comfort issues in your house and drive up your utility costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise often means there’s trouble with your furnace’s blower. Turn off your furnace off immediately and contact our pros at 602-971-0567 for support.

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