When your furnace is working properly, it should provide heat without generating too much noise. While it’s normal to hear your furnace making noise as it begins running, other sounds are signaling your furnace needs immediate professional assistance.

Here are some of the most common furnace noises and what they can mean. If your furnace is making a strange noise, our friendly heating pros are here to help with the best furnace repair in Siloam Springs, Arkansas.

1. Furnace Makes a Banging Sound

You might have a serious situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s essential to schedule routine furnace maintenance with Siloam Springs Heating & AC. One of the things our pros complete during this appointment is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise after ignition takes more time. The subsequent gas buildup can fracture your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can discharge carbon monoxide, which is normally emitted outdoors. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Siloam Springs Heating & AC urges you to turn it off and contacting us at 479-308-8176. Significant natural gas in your furnace or a cracked heat exchanger are serious problems that necessitate prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air around your residence. If the ductwork wasn’t put in correctly or is getting dated, it can be noisy when your furnace is on. This might be the issue if your furnace makes a banging noise when it shuts off. Call Siloam Springs Heating & AC at 479-308-8176 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently means there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to operate on the right voltage. If wires or the box isn’t tight enough, you might notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which distributes warm or chilly air throughout your home, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be related to something minor, like an unsecure screw, or something major, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists 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 heating, it’s trying to tell you it could use some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn out or a bearing may need to be lubricated. We realize that maintenance often slips your mind, but our techs can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also notice whistling while the furnace is working if a floor vent isn’t secure. If you’ve checked your vents but are still sensing sound, Siloam Springs Heating & AC can assist you. It’s essential to get loose ductwork fixed without delay, as it can result in comfort issues in your residence and increase your heating costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound frequently means there’s an issue with your furnace’s blower. Switch off your furnace off right away and call us at 479-308-8176 for help.

When you’re getting a strange noise from your furnace, Siloam Springs Heating & AC is here to help. Contact us at 479-308-8176 to schedule your furnace repair appointment right away.