When your furnace is operating properly, it should give warmth without making too much sound. While it’s normal to notice your furnace making noise as it starts up, other noises are showing your furnace requires immediate professional assistance.
Here are some of the most frequent furnace noises and what they might be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Mankato area, Minnesota.
1. Furnace Makes Banging or Knocking Sounds
You could have an urgent situation 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 include gas accumulating in your furnace or a ductwork situation.
Banging Sounds Coming from Your Furnace
Your heating system becomes grimy over time, so that’s why it’s critical to book annual furnace maintenance with Northern Comfort Inc. One of the tasks our pros perform during this work is clean your furnace’s burners. When this piece gets grimy, you could hear your furnace making a loud rumbling noise if ignition is delayed. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can discharge carbon monoxide, which is regularly vented away from your home. This toxic gas can be deadly in large concentrations.
If you’re aware of banging or knocking sounds coming from your furnace, Northern Comfort Inc advises turning it off and contacting us at 507-387-6596. Significant natural gas in your furnace or a broken heat exchanger are serious troubles that require immediate repairs.
Banging Sounds Coming from Your Ductwork
Your furnace relies on ductwork to move heated air across your home. If the ductwork wasn’t installed properly or is getting dated, it can be loud when your furnace is heating. This may be the issue if your furnace makes a banging noise when it shuts off. Call Northern Comfort Inc at 507-387-6596 and we’ll figure out the problem.
2. Furnace Making a Buzzing Noise
If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often means there’s an electrical situation, like with its transformer, blower motor or capacitor.
Your furnace uses an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you may notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or chilly air throughout your space, and a capacitor, which triggers the motor. If either of these parts are going out, they will buzz when the furnace starts.
3. Furnace Makes Rattling Sounds Like Something Is Loose
If your furnace is making a rattling noise, it can be the result of something little, like a loose screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists at 507-387-6596 for support.
4. Furnace Squeals
If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to get your attention it requires some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing could need to be lubed. We are aware that maintenance frequently slips your mind, but our techs can get your furnace running quietly again quickly.
5. Furnace Makes a Whistling Sound Like Air Escaping
When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also notice whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still noticing sound, Northern Comfort Inc can help. It’s critical to get loose ductwork taken care of quickly, because it can create comfort problems in your residence and inflate your utility bills.
6. Furnace Makes a Loud, Unpleasant Grinding Noise
It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal racket typically means there’s trouble with your furnace’s blower. Switch off your furnace off instantly and reach our professionals at 507-387-6596 for support.
When you’re getting an atypical noise from your furnace, Northern Comfort Inc is available to support you. Contact us at 507-387-6596 to schedule your furnace repair appointment today.
