When your furnace is running like it should, it should provide heat without generating too much disruption. While it’s expected to hear your furnace making noise as it begins running, other sounds are showing your furnace should get immediate professional support.
Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Houston, Texas.
1. Furnace Makes Banging or Knocking Sounds
You might 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 a couple of problems. These include gas building up in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system turns grimy over the years, so that’s why it’s important to schedule yearly furnace maintenance with 249 Air. One of the jobs our professionals perform during this appointment is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise when ignition takes more time. The subsequent gas buildup might break your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can discharge carbon monoxide, which is ordinarily emitted away from your home. This dangerous gas can be deadly in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, 249 Air urges you to turn it off and calling us at 832-263-1969. Too much natural gas in your furnace or a broken heat exchanger are critical problems that necessitate prompt attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to deliver hot air around your home. If the ductwork wasn’t installed properly or is aging, it can make a lot of noise when your furnace runs. This may be the problem if your furnace makes a banging noise when it shuts off. Call 249 Air at 832-263-1969 and we’ll pinpoint the problem.
2. Furnace Making a Buzzing Noise
If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently indicates an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to work on the proper voltage. If wires or the box is loose, you may hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or cold air around your house, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace starts.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it can be related to something small, like a loose screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating pros at 832-263-1969 for support.
4. Furnace Is Making a High-Pitched Squealing Sound
If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to alert you it needs some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing might need to be lubricated. We know that maintenance frequently slips your mind, but our technicians can get your furnace heating quietly again fast.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You could also hear whistling while the furnace is working if a floor vent isn’t secure. If you’ve checked your vents but are still noticing noise, 249 Air can help. It’s essential to get loose ductwork repaired quickly, since it can result in comfort troubles 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 hear your furnace making a grinding noise. This metal-on-metal sound often means there’s a problem with your furnace’s blower. Turn off your furnace off right away and contact our pros at 832-263-1969 for help.
When you’re getting an uncommon noise from your furnace, 249 Air is ready to support you. Contact us at 832-263-1969 to request your furnace repair appointment today.