When your furnace is operating properly, it should give warm air without making too much disruption. While it’s normal to catch your furnace making noise as it starts up, other sounds are indicating your furnace needs immediate professional assistance.
Here are some of the most reported furnace noises and what they could 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 Omaha, Nebraska.
1. Furnace Making a Banging Noise
You may have a serious issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These range from gas accumulating in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system becomes grimy over time, so that’s why it’s essential to set routine furnace maintenance with Interstate Heating & Air Conditioning. One of the things our professionals complete during this service is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup may crack your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can discharge carbon monoxide, which is normally emitted away from your home. This toxic gas can be deadly in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, Interstate Heating & Air Conditioning recommends turning it off and calling us at 402-509-5940. Too much natural gas in your furnace or a ruptured heat exchanger are critical issues that require immediate service.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to move hot air across your house. If the ductwork wasn’t designed right or is getting old, it can make a lot of noise when your furnace is heating. This may be the case if your furnace makes a banging noise when it shuts off. Get in touch with Interstate Heating & Air Conditioning at 402-509-5940 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to operate on the correct voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cooled air across your space, and a capacitor, which triggers the motor. If either of these components are failing, 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 may be related to something minor, like a loose screw, or something critical, like a broken component. In either case, we advise shutting your furnace off and getting in touch with our heating professionals at 402-509-5940 for assistance.
4. Furnace Squeals
If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to alert you it could use some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be lubed. We realize that maintenance frequently slips your mind, but our professionals can get your furnace running quietly again rapidly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still noticing sound, Interstate Heating & Air Conditioning can assist you. It’s essential to get loose ductwork taken care of fast, because it can create comfort problems in your house and drive up your energy expenses.
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 often means there’s trouble with your furnace’s blower. Turn off your furnace off immediately and contact our pros at 402-509-5940 for support.
When you’re noticing an uncommon noise from your furnace, Interstate Heating & Air Conditioning is here to help. Contact us at 402-509-5940 to request your furnace repair appointment today.