When your furnace is operating correctly, it should deliver warm air without creating too much disruption. While it’s common to catch your furnace making noise as it starts up, other disruptions are showing your furnace needs immediate professional support.
Here are some of the most reported furnace noises and what they could be signaling. If your furnace is making an atypical noise, our friendly heating professionals are here to assist with the best furnace repair in Wilmington, Delaware.
1. Furnace Makes a Banging Sound
You might have a serious issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a few problems. These involve gas accumulating in your furnace or a ductwork problem.
Banging Sounds Coming from Your Furnace
Your heating system turns grimy over time, so that’s why it’s critical to set annual furnace maintenance with Brandywine Heating & Air. One of the tasks our technicians perform during this appointment is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can emit carbon monoxide, which is regularly vented outdoors. This hazardous gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Brandywine Heating & Air advises turning it off and reaching us at 302-261-3596. Significant natural gas in your furnace or a fractured heat exchanger are hazardous issues that necessitate prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to move hot air around your residence. If the ductwork wasn’t installed properly or is getting old, it can be loud when your furnace is heating. This may be the case if your furnace makes a banging noise when it shuts off. Contact Brandywine Heating & Air at 302-261-3596 and we’ll figure out the problem.
2. Furnace Makes a Buzzing Sound
If you hear 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 relies on an internal transformer to run on the correct voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes hot or cold air across your home, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace starts.
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 unsecure screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and contacting our heating professionals at 302-261-3596 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 attempting to get your attention it requires 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 know that maintenance often slips your mind, but our professionals can get your furnace heating quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re hearing 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 secure. If you’ve looked at your vents but are still noticing whistling, Brandywine Heating & Air can assist you. It’s essential to get loose ductwork fixed without delay, as it can result in comfort problems in your residence and inflate your utility costs.
6. Furnace Making a Grinding Noise
It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal racket usually means there’s a problem with your furnace’s blower. Turn off your furnace off now and contact our professionals at 302-261-3596 for support.
When you’re hearing an atypical noise from your furnace, Brandywine Heating & Air is ready to help. Contact us at 302-261-3596 to request your furnace repair appointment today.