When your furnace is working correctly, it should give heat without making too much noise. While it’s expected to notice your furnace making noise as it turns on, other disruptions are indicating your furnace should get immediate professional support.

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

1. Furnace Making a Banging Noise

You may have an urgent problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a few problems. These range from gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over the years, so that’s why it’s critical to book seasonal furnace maintenance with Siloam Springs Heating & AC. One of the things our technicians complete during this work is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise after ignition takes longer than normal. The ensuing gas buildup may fracture your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can emit carbon monoxide, which is ordinarily released away from your home. 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 recommends turning it off and contacting us at 479-308-8176. Significant natural gas in your furnace or a cracked heat exchanger are dangerous issues that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move warm air across your house. If the ductwork wasn’t designed right or is getting old, it can make a lot of noise when your furnace is heating. This may 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 Making a Buzzing Noise

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

Your furnace depends on an internal transformer to run 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 has a blower motor, which sends heated or cooled air across your house, and a capacitor, which turns on the motor. If either of these parts are fading, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be due to something little, like an unsecure screw, or something major, like a broken part. In either case, we advise shutting your furnace off and calling our heating pros at 479-308-8176 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to alert you it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be lubed. We are aware that maintenance sometimes slips your mind, but our professionals can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also be aware of whistling while the furnace is on if a floor vent isn’t secure. If you’ve examined your vents but are still sensing noise, Siloam Springs Heating & AC can help. It’s essential to get loose ductwork taken care of quickly, since it can make comfort issues in your house and increase your energy costs.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice 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 right away and call us at 479-308-8176 for support.

When you’re noticing a weird noise from your furnace, Siloam Springs Heating & AC is ready to help. Contact us at 479-308-8176 to book your furnace repair appointment now.