When your furnace is running correctly, it should deliver warmth without generating too much sound. While it’s expected to hear your furnace making noise as it begins running, other sounds are signaling your furnace needs immediate professional support.

Here are some of the most common furnace noises and what they might mean. If your furnace is making a weird noise, our friendly heating specialists are here to assist with the best furnace repair in Norco and surrounding parishes, Louisiana.

1. Furnace Makes Banging or Knocking Sounds

You may have a critical situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These range from gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets dirty over the years, so that’s why it’s critical to set yearly furnace maintenance with Mayeuxs AC & Heating. One of the jobs our professionals do during this work is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise after ignition takes longer than normal. The subsequent gas buildup might fracture your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can leak carbon monoxide, which is regularly emitted outside. This toxic gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Mayeuxs AC & Heating advises turning it off and reaching us at (985) 764-2426. Too much natural gas in your furnace or a fractured heat exchanger are dangerous problems that require prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver heated air across your house. If the ductwork wasn’t designed right or is aging, it can make a lot of noise when your furnace runs. This may be the issue if your furnace makes a banging noise when it shuts off. Call Mayeuxs AC & Heating at (985) 764-2426 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently 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 isn’t tight enough, you might hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cold air throughout your rooms, and a capacitor, which starts the motor. If either of these parts are failing, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be due 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 pros at (985) 764-2426 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to get your attention it requires some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubricated. We know that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent is loose. If you’ve looked at your vents but are still sensing noise, Mayeuxs AC & Heating can assist you. It’s essential to get loose ductwork fixed fast, as it can result in comfort problems in your house and inflate your gas costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal racket typically means there’s an issue with your furnace’s blower. Shut down your furnace off right away and contact our professionals at (985) 764-2426 for help.

When you’re getting a weird noise from your furnace, Mayeuxs AC & Heating is available to support you. Contact us at (985) 764-2426 to request your furnace repair appointment now.