When your furnace is working correctly, it should deliver heat without creating too much disruption. While it’s expected to notice your furnace making noise as it turns on, other noises are indicating your furnace requires immediate professional support.
Here are some of the most common furnace noises and what they could be signaling. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Lexington, North Carolina.
1. Furnace Making a Banging Noise
You might have an urgent issue 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 include gas increasing in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system turns filthy as time passes, so that’s why it’s essential to set annual furnace maintenance with James Heating & A/C, Inc. One of the jobs our techs do during this work is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can emit carbon monoxide, which is regularly 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, James Heating & A/C, Inc advises turning it off and reaching us at 336-853-6070. Excessive natural gas in your furnace or a cracked heat exchanger are hazardous problems that necessitate prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace uses ductwork to deliver warm air around your residence. If the ductwork wasn’t designed properly or is getting dated, it can make a lot of noise when your furnace is on. This can be the case if your furnace makes a banging noise when it shuts off. Contact James Heating & A/C, Inc at 336-853-6070 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently is telling you there’s an electrical problem, 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 isn’t tight enough, you may detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends heated or cold air across your rooms, and a capacitor, which starts the motor. If either of these components are fading, they will buzz when the furnace switches on.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it could be related to something minor, like an unfastened screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and contacting our heating pros at 336-853-6070 for support.
4. Furnace Making a Squealing Noise
If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to tell you it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing may need to be greased. We know that maintenance frequently slips your mind, but our techs can get your furnace operating quietly again fast.
5. Furnace Making a Whistling Noise
When you’re detecting your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also be aware of whistling while the furnace is on if a floor vent is loose. If you’ve examined your vents but are still hearing whistling, James Heating & A/C, Inc can assist you. It’s essential to get loose ductwork repaired fast, since it can create comfort problems in your residence and increase your gas 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 frequently means there’s an issue with your furnace’s blower. Turn off your furnace off immediately and reach us at 336-853-6070 for help.
When you’re noticing a strange noise from your furnace, James Heating & A/C, Inc is ready to help. Contact us at 336-853-6070 to book your furnace repair appointment right away.