When your furnace is operating like it should, it should give warm air without creating too much sound. While it’s normal to catch your furnace making noise as it starts up, other sounds are indicating your furnace requires immediate professional support.
Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Kearney, Nebraska.
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 mean there could be a few problems. These involve gas building up in your furnace or a ductwork issue.
Banging Sounds Coming from Your Furnace
Your heating system becomes dirty over the years, so that’s why it’s critical to set routine furnace maintenance with Thurston Heating & Air Conditioning. One of the tasks our pros perform during this work is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise when ignition is delayed. The resulting gas buildup may break your furnace’s heat exchanger, where natural gas turns into warmth. Any fractures in it can emit carbon monoxide, which is normally vented outdoors. This hazardous gas can be deadly in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Thurston Heating & Air Conditioning recommends turning it off and calling us at 308-624-3485. Too much natural gas in your furnace or a fractured heat exchanger are dangerous troubles that require prompt service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to deliver warm air across your home. If the ductwork wasn’t put in correctly or is getting dated, it can make a lot of noise when your furnace is on. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Thurston Heating & Air Conditioning at 308-624-3485 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.
Your furnace depends on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you may hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cooled air across your space, and a capacitor, which triggers the motor. If either of these pieces are fading, 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 the result of something little, like a loose screw, or something major, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 308-624-3485 for support.
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 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 lubricated. We are aware that maintenance frequently slips your mind, but our techs can get your furnace running quietly again quickly.
5. Furnace Whistles
When you’re noticing your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still sensing sound, Thurston Heating & Air Conditioning can help. It’s critical to get loose ductwork fixed quickly, since it can create comfort troubles in your residence and increase your heating bills.
6. Furnace Making a Grinding Noise
It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal noise typically means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and contact our professionals at 308-624-3485 for help.
When you’re noticing an atypical noise from your furnace, Thurston Heating & Air Conditioning is available to help. Contact us at 308-624-3485 to schedule your furnace repair appointment now.