When your furnace is running correctly, it should deliver heat without making too much disruption. While it’s common to notice your furnace making noise as it turns on, other sounds are signaling your furnace should get immediate professional assistance.
Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Columbus, Ohio.
1. Furnace Makes a Banging Sound
You could 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 might mean there could be a few problems. These range from gas building up in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system gets dirty over the years, so that’s why it’s critical to schedule seasonal furnace maintenance with Classic Air. One of the things our techs complete 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 resulting gas buildup can crack your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can discharge carbon monoxide, which is normally emitted outside. This toxic gas can be deadly in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Classic Air urges you to turn it off and calling us at 614-210-3041. Excessive natural gas in your furnace or a fractured heat exchanger are serious issues that require fast repairs.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to provide hot air across your house. If the ductwork wasn’t installed properly or is aging, it can make a lot of noise when your furnace is on. This can be the problem if your furnace makes a banging noise when it shuts off. Call Classic Air at 614-210-3041 and we’ll figure out the problem.
2. Furnace Buzzes Constantly
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often means there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace relies on an internal transformer to run on the correct voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cold air throughout your home, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace switches on.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it can be due to something little, like a loose screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating pros at 614-210-3041 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to tell 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 greased. We realize that maintenance often slips your mind, but our professionals can get your furnace operating quietly again quickly.
5. Furnace Making a Whistling Noise
When you’re detecting your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is running if a floor vent isn’t tight. If you’ve examined your vents but are still hearing sound, Classic Air can provide support. It’s essential to get loose ductwork fixed without delay, as it can make comfort issues in your residence and inflate your utility bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal sound usually means there’s an issue with your furnace’s blower. Turn off your furnace off promptly and call us at 614-210-3041 for assistance.
When you’re hearing a strange noise from your furnace, Classic Air is here to support you. Contact us at 614-210-3041 to schedule your furnace repair appointment now.