When your furnace is running correctly, it should provide warmth without making too much disruption. While it’s common to catch your furnace making noise as it begins running, other sounds are signaling your furnace needs immediate professional assistance.

Here are some of the most frequent furnace noises and what they might mean. If your furnace is making an atypical noise, our friendly heating professionals are here to fix the problem with the best furnace repair in McAllen, Texas.

1. Furnace Making a Banging Noise

You could have a serious problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a couple of problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy as time passes, so that’s why it’s critical to book seasonal furnace maintenance with Cytech Heating & Cooling L.C.. One of the tasks our techs complete during this appointment is clean your furnace’s burners. When this component gets dirty, you could hear your furnace making a loud rumbling noise when ignition takes more time. The ensuing gas buildup might crack your furnace’s heat exchanger, where natural gas changes into warm air. Any fractures in it can leak carbon monoxide, which is normally released outdoors. This toxic gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Cytech Heating & Cooling L.C. urges you to turn it off and reaching us at 956-553-3265. Significant natural gas in your furnace or a cracked heat exchanger are dangerous problems that necessitate prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air throughout your home. If the ductwork wasn’t installed properly or is aging, it can be noisy when your furnace is on. This can be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Cytech Heating & Cooling L.C. at 956-553-3265 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound often means there’s an electrical issue, 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 is loose, you may notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or cold air throughout your rooms, and a capacitor, which turns on the motor. If either of these parts 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 can be related to 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 contacting our heating specialists at 956-553-3265 for help.

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 attempting to get your attention it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing might need to be greased. We realize that maintenance often slips your mind, but our professionals can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You could also notice whistling while the furnace is running if a floor vent isn’t tight. If you’ve checked your vents but are still noticing whistling, Cytech Heating & Cooling L.C. can provide support. It’s critical to get loose ductwork fixed quickly, since it can result in comfort issues in your home and increase your gas 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 noise often means there’s a problem with your furnace’s blower. Turn off your furnace off immediately and reach us at 956-553-3265 for assistance.

When you’re getting an atypical noise from your furnace, Cytech Heating & Cooling L.C. is ready to support you. Contact us at 956-553-3265 to book your furnace repair appointment right away.