When your furnace is working like it should, it should deliver warm air without creating too much sound. While it’s expected to hear your furnace making noise as it starts up, other sounds are signaling your furnace needs immediate professional help.
Here are some of the most common furnace noises and what they might be signaling. If your furnace is making a weird noise, our friendly heating professionals are here to help with the best furnace repair in Myrtle Beach, South Carolina.
1. Furnace Making a Banging Noise
You might have an urgent situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These range from gas building up in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system gets filthy over time, so that’s why it’s essential to book seasonal furnace maintenance with Polar Air & Mechanical. One of the tasks our professionals do during this appointment is clean your furnace’s burners. When this part gets grubby, you could hear your furnace making a loud rumbling noise after ignition takes longer than normal. The resulting gas buildup might crack your furnace’s heat exchanger, where natural gas changes into warm air. Any breaks in it can leak carbon monoxide, which is ordinarily emitted away from your home. This hazardous gas can be fatal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Polar Air & Mechanical advises turning it off and contacting us at 843-253-4874. Too much natural gas in your furnace or a broken heat exchanger are critical problems that require fast repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver heated air across your residence. If the ductwork wasn’t put in right or is aging, it can be noisy when your furnace runs. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Polar Air & Mechanical at 843-253-4874 and we’ll figure out the problem.
2. Furnace Buzzes Constantly
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound often means there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to work on the correct voltage. If wires or the box isn’t tight enough, 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 throughout your home, and a capacitor, which starts the motor. If either of these pieces are fading, 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 related to something minor, like an unsecure screw, or something major, like a broken component. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 843-253-4874 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to tell you it needs some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubed. We realize that maintenance often 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 because of an air leak in your ductwork. You might also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve looked at your vents but are still noticing whistling, Polar Air & Mechanical can help. It’s important to get loose ductwork repaired quickly, because it can make comfort troubles in your house and drive up your utility bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal noise typically means there’s an issue with your furnace’s blower. Shut down your furnace off instantly and contact our pros at 843-253-4874 for assistance.
When you’re getting an atypical noise from your furnace, Polar Air & Mechanical is ready to help. Contact us at 843-253-4874 to schedule your furnace repair appointment now.
