When your furnace is running correctly, it should give warmth without making too much disruption. While it’s normal to catch your furnace making noise as it starts up, other noises are signaling your furnace should get immediate professional help.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making an atypical noise, our friendly heating pros are here to fix the problem with the best furnace repair in Siloam Springs, Arkansas.

1. Furnace Making a Banging Noise

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 indicate there could be several problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy as time passes, so that’s why it’s critical to schedule seasonal furnace maintenance with Siloam Springs Heating & AC. One of the things our technicians perform during this appointment is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can leak carbon monoxide, which is normally emitted outside. This hazardous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Siloam Springs Heating & AC urges you to turn it off and calling us at 479-308-8176. Excessive natural gas in your furnace or a ruptured heat exchanger are dangerous issues that require immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide hot air across your home. If the ductwork wasn’t designed correctly or is aging, it can be noisy when your furnace is on. This might be the problem if your furnace makes a banging noise when it shuts off. Call Siloam Springs Heating & AC at 479-308-8176 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to work 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 distributes heated or cooled air throughout your residence, and a capacitor, which turns on the motor. If either of these pieces are failing, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be related to something small, like an unfastened screw, or something serious, like a broken component. In either case, we urge you to shut your furnace off and contacting our heating professionals at 479-308-8176 for support.

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 making an effort to alert you it requires some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing could need to be lubricated. We realize that maintenance frequently slips your mind, but our technicians can get your furnace operating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You might also be aware of whistling while the furnace is running if a floor vent is loose. If you’ve checked your vents but are still hearing whistling, Siloam Springs Heating & AC can provide support. It’s essential to get loose ductwork fixed without delay, as it can make comfort troubles in your home and inflate your energy bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good 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. Switch off your furnace off promptly and call our pros at 479-308-8176 for help.

When you’re hearing an atypical noise from your furnace, Siloam Springs Heating & AC is available to support you. Contact us at 479-308-8176 to schedule your furnace repair appointment today.