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Banging, Screeching and Rattling: What 6 Ordinary Furnace Noises Indicate

When your furnace is operating 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 indicating your furnace should get immediate professional support.

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

1. Furnace Making a Banging Noise

You might have an urgent issue 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 several problems. These involve gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over time, so that’s why it’s important to book seasonal furnace maintenance with Tri County Air Care LLC. One of the tasks our pros perform during this appointment is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup may break your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can emit carbon monoxide, which is normally vented away from your home. This dangerous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Tri County Air Care LLC advises turning it off and reaching us at 469-213-8367. Excessive natural gas in your furnace or a cracked heat exchanger are dangerous troubles that should get prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air across your residence. If the ductwork wasn’t installed correctly or is getting old, it can be noisy when your furnace is heating. This may be the case if your furnace makes a banging noise when it shuts off. Contact Tri County Air Care LLC at 469-213-8367 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you may detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes heated or chilly air throughout your rooms, and a capacitor, which triggers the motor. If either of these parts are fading, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be related to something small, like a loose screw, or something major, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 469-213-8367 for help.

4. Furnace Making a Squealing Noise

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 recently, belts could be dilapidated or a bearing might need to be lubed. We realize that maintenance often slips your mind, but our pros can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You might also notice whistling while the furnace is on if a floor vent isn’t secure. If you’ve checked your vents but are still noticing sound, Tri County Air Care LLC can help. It’s essential to get loose ductwork taken care of quickly, as it can create comfort issues in your house and increase your energy expenses.

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. Shut down your furnace off immediately and reach us at 469-213-8367 for help.

When you’re getting a strange noise from your furnace, Tri County Air Care LLC is available to provide assistance. Contact us at 469-213-8367 to book your furnace repair appointment now.

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