When your furnace is working like it should, it should provide warmth without generating too much disruption. While it’s common to notice your furnace making noise as it starts up, other noises are showing your furnace should get immediate professional support.
Here are some of the most frequent furnace noises and what they might mean. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Los Angeles, California.
1. Furnace Making a Banging Noise
You may have a critical situation 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 involve gas increasing in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system becomes dirty over the years, so that’s why it’s important to schedule yearly furnace maintenance with AZ Air Conditioning and Heating. One of the tasks our pros do during this work is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise when ignition takes more time. The subsequent gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into heat. Any cracks in it can discharge carbon monoxide, which is regularly vented outdoors. This toxic gas can be lethal in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, AZ Air Conditioning and Heating advises turning it off and contacting us at 800-296-5088. Significant natural gas in your furnace or a broken heat exchanger are serious problems that require prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver hot air across your residence. If the ductwork wasn’t installed properly or is aging, it can be loud when your furnace is heating. This may be the issue if your furnace makes a banging noise when it shuts off. Get in touch with AZ Air Conditioning and Heating at 800-296-5088 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 means there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to work on the correct voltage. If wires or the box isn’t tight enough, you might hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes warm or cooled air throughout your house, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace starts.
3. Furnace Rattles
If your furnace is making a rattling noise, it could be the result of something minor, like an unfastened screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and contacting our heating pros at 800-296-5088 for support.
4. Furnace Is Making a High-Pitched Squealing Sound
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to get your attention it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing might need to be lubricated. We realize that maintenance frequently slips your mind, but our techs can get your furnace running quietly again fast.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You may also be aware of whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still noticing whistling, AZ Air Conditioning and Heating can provide support. It’s critical to get loose ductwork taken care of quickly, because it can make comfort issues in your home and increase your heating bills.
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 racket usually means there’s trouble with your furnace’s blower. Turn off your furnace off instantly and reach our professionals at 800-296-5088 for assistance.
When you’re hearing a strange noise from your furnace, AZ Air Conditioning and Heating is ready to support you. Contact us at 800-296-5088 to book your furnace repair appointment now.