When your furnace is operating correctly, it should deliver heat without making too much sound. While it’s expected to catch your furnace making noise as it begins running, other disruptions are signaling your furnace should get immediate professional assistance.
Here are some of the most common furnace noises and what they might mean. If your furnace is making a strange noise, our friendly heating pros are here to help with the best furnace repair in Lawrence, Kansas.
1. Furnace Making a Banging Noise
You could have a serious problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may signal there could be a few problems. These range from gas building up in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system gets dirty over the years, so that’s why it’s critical to schedule yearly furnace maintenance with Scott Temperature. One of the tasks our technicians perform during this appointment is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise after ignition is delayed. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into heat. Any cracks in it can discharge carbon monoxide, which is normally emitted away from your home. This dangerous gas can be fatal in large concentrations.
If you’re hearing banging or knocking sounds coming from your furnace, Scott Temperature urges you to turn it off and reaching us at 785-269-0465. Too much natural gas in your furnace or a cracked heat exchanger are dangerous issues that require fast service.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to provide hot air across your house. If the ductwork wasn’t put in properly or is getting old, it can make a lot of noise when your furnace is on. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Scott Temperature at 785-269-0465 and we’ll figure out the problem.
2. Furnace Makes a Buzzing Sound
If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently 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 might detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves warm or chilly air throughout your residence, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace starts.
3. Furnace Making a Rattling Noise
If your furnace is making a rattling noise, it can be due to something minor, like an unsecure screw, or something major, like a broken part. In either case, we advise shutting your furnace off and calling our heating professionals at 785-269-0465 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 making an effort to alert you it could use some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing may need to be greased. We realize that maintenance often slips your mind, but our pros can get your furnace running quietly again rapidly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re noticing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still hearing noise, Scott Temperature can help. It’s critical to get loose ductwork repaired fast, because it can result in comfort troubles in your house and drive up your gas expenses.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise frequently means there’s an issue with your furnace’s blower. Shut down your furnace off instantly and contact us at 785-269-0465 for help.
When you’re getting a strange noise from your furnace, Scott Temperature is here to provide assistance. Contact us at 785-269-0465 to schedule your furnace repair appointment right away.