When your furnace is operating like it should, it should provide warm air without creating too much sound. While it’s expected to notice your furnace making noise as it starts up, other noises are showing your furnace requires immediate professional support.
Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Heflin, Alabama.
1. Furnace Making a Banging Noise
You could have a critical problem on your hands if you’re noticing 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 problem.
Banging Sounds Coming from Your Furnace
Your heating system becomes filthy over time, so that’s why it’s essential to set seasonal furnace maintenance with Bain Heating & Air Conditioning. One of the tasks our pros perform during this work is clean your furnace’s burners. When this component gets grubby, you could hear your furnace making a loud rumbling noise if ignition takes more time. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can leak carbon monoxide, which is ordinarily vented outdoors. This dangerous gas can be lethal in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Bain Heating & Air Conditioning recommends turning it off and calling us at 256-270-1196. Too much natural gas in your furnace or a ruptured heat exchanger are serious issues that necessitate prompt attention.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver heated air throughout your house. If the ductwork wasn’t installed correctly or is getting dated, it can be loud when your furnace is on. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with Bain Heating & Air Conditioning at 256-270-1196 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to run on the correct voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cold air around your space, and a capacitor, which turns on the motor. If either of these pieces are going out, they will buzz when the furnace turns on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it may be related to something small, like an unfastened screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating pros at 256-270-1196 for assistance.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to tell you it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing might need to be greased. We know that maintenance often slips your mind, but our technicians can get your furnace operating quietly again quickly.
5. Furnace Making a Whistling Noise
When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You might also hear whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still noticing sound, Bain Heating & Air Conditioning can provide support. It’s essential to get loose ductwork repaired quickly, because it can make comfort problems in your residence and increase your utility costs.
6. Furnace Making a Grinding Noise
It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise often means there’s trouble with your furnace’s blower. Shut down your furnace off now and call our professionals at 256-270-1196 for support.
When you’re noticing a strange noise from your furnace, Bain Heating & Air Conditioning is ready to help. Contact us at 256-270-1196 to request your furnace repair appointment today.