When your furnace is working like it should, it should give warm air without making too much sound. While it’s expected to hear your furnace making noise as it begins running, other noises are signaling your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they could be signaling. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Magnolia, Texas.

1. Furnace Makes a Banging Sound

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

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy as time passes, so that’s why it’s essential to schedule routine furnace maintenance with JTech Mechanical. One of the things our technicians complete during this work is clean your furnace’s burners. When this component gets grimy, you could hear your furnace making a loud rumbling noise if ignition is delayed. The ensuing gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can discharge carbon monoxide, which is ordinarily emitted outside. This hazardous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, JTech Mechanical recommends turning it off and contacting us at 281-231-8768. Significant natural gas in your furnace or a broken heat exchanger are dangerous troubles that necessitate prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move heated air throughout your house. If the ductwork wasn’t designed properly or is getting old, it can be loud when your furnace runs. This can be the issue if your furnace makes a banging noise when it shuts off. Get in touch with JTech Mechanical at 281-231-8768 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t delay calling 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 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 uses a blower motor, which distributes hot or cooled air throughout your residence, and a capacitor, which triggers the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be the result of something small, like an unfastened screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 281-231-8768 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to alert you it could use some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing may need to be greased. We are aware that maintenance sometimes slips your mind, but our technicians can get your furnace operating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also hear whistling while the furnace is on if a floor vent isn’t secure. If you’ve checked your vents but are still noticing sound, JTech Mechanical can help. It’s critical to get loose ductwork repaired fast, because it can make comfort problems in your home and inflate your heating expenses.

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 sound typically means there’s an issue with your furnace’s blower. Turn off your furnace off now and reach us at 281-231-8768 for assistance.

When you’re hearing a weird noise from your furnace, JTech Mechanical is here to provide assistance. Contact us at 281-231-8768 to request your furnace repair appointment now.