When your furnace is running correctly, it should deliver heat without making too much sound. While it’s common to catch your furnace making noise as it starts up, other disruptions are showing your furnace requires immediate professional support.
Here are some of the most common furnace noises and what they might mean. If your furnace is making an atypical noise, our friendly heating specialists are here to help with the best furnace repair in Rock Hill, SC.
1. Furnace Making a Banging Noise
You might have a serious problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be several problems. These range from gas accumulating in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system gets dirty over time, so that’s why it’s important to book seasonal furnace maintenance with US Air Heating and Cooling. One of the things our technicians perform during this service is clean your furnace’s burners. When this piece gets grimy, you could hear your furnace making a loud rumbling noise when ignition takes more time. The ensuing gas buildup might break your furnace’s heat exchanger, where natural gas turns into warmth. Any breaks in it can discharge carbon monoxide, which is normally emitted outdoors. This dangerous gas can be lethal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, US Air Heating and Cooling advises turning it off and reaching us at 803-220-0761. Too much natural gas in your furnace or a cracked heat exchanger are dangerous issues that should get immediate service.
Banging Sounds Coming from Your Ductwork
Your furnace works with ductwork to move heated air around your house. If the ductwork wasn’t installed right or is getting dated, it can be noisy when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Call US Air Heating and Cooling at 803-220-0761 and we’ll determine the problem.
2. Furnace Making a Buzzing Noise
If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound often is telling you there’s an electrical problem, 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 needs to be tightened, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cold air across your house, and a capacitor, which starts the motor. If either of these pieces are fading, they will buzz when the furnace turns on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it can be related to something small, like an unfastened screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating pros at 803-220-0761 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be greased. We know that maintenance often slips your mind, but our professionals can get your furnace running quietly again fast.
5. Furnace Making a Whistling Noise
When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You could also hear whistling while the furnace is on if a floor vent isn’t secure. If you’ve examined your vents but are still sensing whistling, US Air Heating and Cooling can assist you. It’s important to get loose ductwork repaired without delay, because it can make comfort issues in your home and increase your energy costs.
6. Furnace Making a Grinding Noise
It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal racket often means there’s a problem with your furnace’s blower. Switch off your furnace off now and reach us at 803-220-0761 for help.
When you’re hearing an uncommon noise from your furnace, US Air Heating and Cooling is available to provide assistance. Contact us at 803-220-0761 to request your furnace repair appointment today.