When your furnace is operating properly, it should deliver heat without creating too much noise. While it’s expected to hear your furnace making noise as it begins running, other disruptions are showing your furnace should get immediate professional support.
Here are some of the most frequent furnace noises and what they might be signaling. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in Houston, Texas.
1. Furnace Making a Banging Noise
You could have an urgent situation 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 a few problems. These range from gas accumulating in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns grimy over the years, so that’s why it’s important to set yearly furnace maintenance with Air Current AC & Heat. One of the tasks our technicians do during this service is clean your furnace’s burners. When this part gets dirty, you could hear your furnace making a loud rumbling noise if ignition is delayed. The subsequent gas buildup might break your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can leak carbon monoxide, which is regularly released outside. This hazardous gas can be deadly in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Air Current AC & Heat advises turning it off and calling us at 713-322-4318. Significant natural gas in your furnace or a cracked heat exchanger are critical troubles that require prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to deliver hot air across your residence. If the ductwork wasn’t designed properly or is getting old, it can be noisy when your furnace runs. This might be the issue if your furnace makes a banging noise when it shuts off. Call Air Current AC & Heat at 713-322-4318 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to run on the right voltage. If wires or the box needs to be tightened, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot or cooled air throughout your rooms, and a capacitor, which turns on the motor. If either of these pieces 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 may be the result of something little, like an unsecure screw, or something critical, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating pros at 713-322-4318 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to get your attention it needs some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing may need to be greased. We know that maintenance frequently slips your mind, but our technicians can get your furnace operating quietly again fast.
5. Furnace Making a Whistling Noise
When you’re noticing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent isn’t secure. If you’ve looked at your vents but are still noticing noise, Air Current AC & Heat can help. It’s important to get loose ductwork taken care of without delay, because it can make comfort issues in your home and inflate your heating expenses.
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 frequently means there’s a problem with your furnace’s blower. Switch off your furnace off now and call our pros at 713-322-4318 for assistance.
When you’re noticing an uncommon noise from your furnace, Air Current AC & Heat is here to support you. Contact us at 713-322-4318 to book your furnace repair appointment today.