When your furnace is operating properly, it should give warmth without generating too much noise. While it’s expected to catch your furnace making noise as it turns on, other sounds are indicating your furnace requires immediate professional support.
Here are some of the most common furnace noises and what they might be indicating. If your furnace is making an odd noise, our friendly heating pros are here to fix the problem with the best furnace repair in New Castle, Pennsylvania.
1. Furnace Makes a Banging Sound
You could have an urgent situation 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 couple of problems. These include gas increasing in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns dirty over the years, so that’s why it’s critical to book yearly furnace maintenance with Central Heating & Plumbing. One of the tasks our techs 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 is delayed. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can leak carbon monoxide, which is ordinarily emitted outdoors. This toxic gas can be fatal in large concentrations.
If you’re noticing banging or knocking sounds coming from your furnace, Central Heating & Plumbing urges you to turn it off and reaching us at 724-401-1843. Excessive natural gas in your furnace or a ruptured heat exchanger are serious problems that necessitate immediate attention.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move heated air around your home. If the ductwork wasn’t installed properly or is getting old, it can make a lot of noise when your furnace is heating. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Central Heating & Plumbing at 724-401-1843 and we’ll pinpoint the problem.
2. Furnace Makes a Buzzing Sound
If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound typically indicates an electrical problem, 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 needs to be tightened, you may detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends hot or cooled air around your space, and a capacitor, which starts the motor. If either of these components are failing, they will buzz when the furnace switches on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it can be related to something minor, like an unfastened screw, or something serious, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating professionals at 724-401-1843 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to get your attention it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing could need to be lubricated. We realize that maintenance often slips your mind, but our technicians can get your furnace heating quietly again rapidly.
5. Furnace Making a Whistling Noise
When you’re detecting your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You could also be aware of whistling while the furnace is working if a floor vent isn’t tight. If you’ve checked your vents but are still noticing noise, Central Heating & Plumbing can assist you. It’s essential to get loose ductwork taken care of quickly, because it can make comfort troubles in your residence and increase 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 usually means there’s an issue with your furnace’s blower. Shut down your furnace off instantly and call us at 724-401-1843 for help.
When you’re noticing a weird noise from your furnace, Central Heating & Plumbing is ready to provide assistance. Contact us at 724-401-1843 to request your furnace repair appointment today.