Every appliance in your house is going to make a certain amount of noise while it is operating. It is important to realize when those normal functioning noises become a noise that means something else. There are many noises your furnace could be making that mean there is a problem with one or more of the working parts found within your furnace. Some of the noises mean that there is a emergent problem while others indicate that it’s time for some maintenance to be performed. North Country Aire is here to talk about furnaces and the noises they make so that you can be prepared to decipher what the odd sounds your furnace is making means.

My Furnace Makes a High Pitched Screeching Noise

There are a couple of reasons it may sound like nails on a chalkboard when you turn on your furnace. You could have an issue with the belt which will need to be looked at by a professional. Another problem could be a motor bearing that is in desperate need of lubrication. It may be tempting to grab your standard WD-40 to handle the job, but this won’t be enough to withstand the everyday use a furnace gets. You will likely need professional help here as well.

Furnace Makes a Banging Noise that Sounds Like Loud Popcorn Popping

You have probably noticed a lot of popping and cracking as the furnace kicks on. This is a harmless noise for the most part. A lot of the time, this comes from the ductwork as they expand and contract. However, if you notice that these pops and cracks turn into a loud banging noise or just seem overall louder than they used to, it could mean bigger problems. If there is a buildup of gas in the furnace before it ignites, there could be a small explosion happening each time it kicks on. This is an issue that should be resolved by a professional right away.

Furnace Making Scraping Noises

If you hear a scraping noise coming from your furnace, it is probably a problem with your blower. You could have a couple of issues with it. The blower wheel may have come loose and is scraping on the wheel casing, or there may be a broken blower wheel. If the motor mount is broken, it will cause the blower to scrap as it tries to function as well.

Furnace Making Knocking or Clunking Noise

Similar to playing cards in the spokes of a bike wheel, thwapping with your furnace means that you most likely have something stuck in the blades of the motor or in the housing of the furnace. This doesn’t constitute as an emergency, but you should have it checked out by a professional.

Furnace Inspection, Troubleshooting, Diagnosis, Repair, Tune Up Maintenance & More in Mora, Ogilvie, Grasston, Quamba, Cambridge, St. Francis, Oak Grove, North Branch & Greater Isanti, Minnesota

If you are hearing noises with your furnace when it turns on, remember that some noise is okay while others point to a problem. The experts at North Country Aire have a team of professionals that can help you get to the bottom of any strange noises you may be hearing. Call us today!