When your furnace is working properly, it should provide warmth without generating too much sound. While it’s expected to hear your furnace making noise as it begins running, other noises are showing your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to help with the best furnace repair in Mobile, Alabama.

1. Furnace Makes a Banging Sound

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

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty as time passes, so that’s why it’s essential to set yearly furnace maintenance with Farnell Heating & Air Conditioning Inc. One of the jobs our technicians complete during this service is clean your furnace’s burners. When this component gets grubby, you may hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup might break your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can emit carbon monoxide, which is ordinarily vented outdoors. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Farnell Heating & Air Conditioning Inc urges you to turn it off and calling us at 251-471-2674. Too much natural gas in your furnace or a ruptured heat exchanger are critical problems that should get prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide warm air around your residence. If the ductwork wasn’t designed correctly or is getting old, it can be noisy when your furnace runs. This could be the case if your furnace makes a banging noise when it shuts off. Call Farnell Heating & Air Conditioning Inc at 251-471-2674 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace relies on an internal transformer to operate 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 works with a blower motor, which distributes warm or cold air around your house, and a capacitor, which turns on the motor. If either of these pieces are failing, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be the result of something small, like a loose screw, or something major, like a broken component. In either case, we advise shutting your furnace off and contacting our heating professionals at 251-471-2674 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to get your attention it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubed. We are aware that maintenance often slips your mind, but our technicians can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve examined your vents but are still noticing noise, Farnell Heating & Air Conditioning Inc can provide support. It’s essential to get loose ductwork repaired without delay, since it can make comfort troubles in your house and inflate your utility bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal racket frequently means there’s an issue with your furnace’s blower. Switch off your furnace off immediately and contact us at 251-471-2674 for assistance.

When you’re hearing an atypical noise from your furnace, Farnell Heating & Air Conditioning Inc is ready to provide assistance. Contact us at 251-471-2674 to book your furnace repair appointment now.