When your furnace is running like it should, it should provide heat without creating too much sound. While it’s expected to hear your furnace making noise as it starts up, other disruptions are showing your furnace requires immediate professional assistance.
Here are some of the most reported furnace noises and what they could be signaling. If your furnace is making a strange noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Kearney, Nebraska.
1. Furnace Makes Banging or Knocking Sounds
You could have a critical 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 several problems. These involve gas accumulating in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system becomes dirty over time, so that’s why it’s important to schedule annual furnace maintenance with Thurston Heating & Air Conditioning. One of the tasks our professionals complete during this service is clean your furnace’s burners. When this part gets dirty, you could hear your furnace making a loud rumbling noise after ignition takes more time. The subsequent gas buildup might crack your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can discharge carbon monoxide, which is regularly vented outdoors. This hazardous gas can be lethal in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, Thurston Heating & Air Conditioning recommends turning it off and calling us at 308-624-3485. Significant natural gas in your furnace or a ruptured heat exchanger are dangerous troubles that necessitate fast repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver warm air around your residence. If the ductwork wasn’t put in properly or is getting dated, it can be loud when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Contact Thurston Heating & Air Conditioning at 308-624-3485 and we’ll determine the problem.
2. Furnace Buzzes Constantly
If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound typically indicates an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to operate on the correct voltage. If wires or the box needs to be tightened, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cooled air around your home, 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 Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it can be due to something small, like a loose screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 308-624-3485 for assistance.
4. Furnace Squeals
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to alert you it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be lubricated. We know that maintenance sometimes slips your mind, but our professionals can get your furnace operating quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent is loose. If you’ve examined your vents but are still noticing noise, Thurston Heating & Air Conditioning can assist you. It’s essential to get loose ductwork fixed quickly, because it can create comfort issues in your house and inflate your utility bills.
6. Furnace Makes Noise that Sounds Like Scraping Metal
It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise typically means there’s a problem with your furnace’s blower. Switch off your furnace off instantly and contact our pros at 308-624-3485 for assistance.
When you’re getting a strange noise from your furnace, Thurston Heating & Air Conditioning is available to provide assistance. Contact us at 308-624-3485 to book your furnace repair appointment now.