When your furnace is running correctly, it should deliver heat without generating too much sound. While it’s common to catch your furnace making noise as it begins running, other noises are showing your furnace needs immediate professional assistance.

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

1. Furnace Makes Banging or Knocking Sounds

You might have a serious issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be a few problems. These range from gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over time, so that’s why it’s essential to schedule yearly furnace maintenance with Siloam Springs Heating & AC. One of the tasks our pros perform during this service is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can discharge carbon monoxide, which is regularly vented outdoors. This dangerous gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Siloam Springs Heating & AC advises turning it off and contacting us at 479-308-8176. Significant natural gas in your furnace or a ruptured heat exchanger are hazardous troubles that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air around your house. If the ductwork wasn’t put in properly or is getting old, it can make a lot of noise when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Siloam Springs Heating & AC at 479-308-8176 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace uses an internal transformer to operate on the proper voltage. If wires or the box is loose, you might hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cold air throughout your residence, and a capacitor, which turns on the motor. If either of these pieces are going out, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be related to something little, like an unfastened screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and calling our heating professionals at 479-308-8176 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 alert you it needs some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be greased. We know that maintenance frequently slips your mind, but our pros can get your furnace running 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 hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve looked at your vents but are still noticing whistling, Siloam Springs Heating & AC can provide support. It’s important to get loose ductwork fixed quickly, since it can create comfort problems in your residence and increase your utility 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 noise typically means there’s trouble with your furnace’s blower. Switch off your furnace off immediately and contact our pros at 479-308-8176 for support.

When you’re noticing an uncommon noise from your furnace, Siloam Springs Heating & AC is available to provide assistance. Contact us at 479-308-8176 to request your furnace repair appointment now.