When your furnace is running like it should, it should deliver heat without generating too much disruption. While it’s common to hear your furnace making noise as it begins running, other noises are showing your furnace requires immediate professional support.
Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Myrtle Beach, South Carolina.
1. Furnace Makes Banging or Knocking Sounds
You may have a serious problem 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 several problems. These range from gas accumulating in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system gets dirty as time passes, so that’s why it’s important to set routine furnace maintenance with Polar Air & Mechanical. One of the tasks our techs complete during this service is clean your furnace’s burners. When this component gets dirty, you could hear your furnace making a loud rumbling noise if ignition is delayed. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can emit carbon monoxide, which is normally vented away from your home. This hazardous gas can be lethal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Polar Air & Mechanical recommends turning it off and reaching us at 843-253-4874. Significant natural gas in your furnace or a ruptured heat exchanger are serious problems that should get immediate attention.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to deliver warm air throughout your residence. If the ductwork wasn’t installed correctly or is getting old, it can be noisy when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Call Polar Air & Mechanical at 843-253-4874 and we’ll figure out the problem.
2. Furnace Buzzes Constantly
If you observe your furnace making a buzzing noise, don’t hesitate to call 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 proper voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes warm or cooled air around your residence, and a capacitor, which triggers the motor. If either of these pieces are failing, 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 could be related to something minor, like an unfastened screw, or something serious, like a broken part. In either case, we advise shutting your furnace off and calling our heating specialists at 843-253-4874 for help.
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 trying to get your attention it needs some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be lubricated. We are aware that maintenance often slips your mind, but our professionals can get your furnace operating quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also hear whistling while the furnace is on if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, Polar Air & Mechanical can assist you. It’s important to get loose ductwork repaired fast, since it can make comfort problems in your house and increase your gas bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s trouble with your furnace’s blower. Turn off your furnace off instantly and call our professionals at 843-253-4874 for help.
When you’re noticing a strange noise from your furnace, Polar Air & Mechanical is ready to provide assistance. Contact us at 843-253-4874 to schedule your furnace repair appointment today.
