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Serving The Greater
Coeur D’Alene & Spokane Area

Serving The Greater Coeur D’Alene & Spokane Area


ACI Northwest Blog

Don’t Ignore These Furnace Noises!

ACI NorthwestWith temperatures now down to the 50’s during the day, there is definitely no denying that fall is here and winter is well on its way. As such, you’re very likely beginning to use your furnace on a regular basis. As you begin to use your furnace, pay attention to the noises that it is making. True, all furnaces make noise, but there are some sounds that are not related to the normal operation of your heating system—and you should heed warning.

When odd sounds come from your furnace, they are typically the early signs of developing problems within the system. These issues can lead to expensive repairs or even premature system breakdown, which nobody wants—particularly in the dead of winter. So as our weather gets colder, pay attention to your furnace and give our repair professionals a call if you notice any of the following furnace noises.

Squealing or Clanking

The most likely cause of this noise is a cracked or loose blower motor fan belt. This is a serious problem that needs attention right away, as a loose belt can and will damage other important components.


This is most likely a problem with the motor bearings of your furnace. They may have become worn down and need replacement. Be sure to address this right away so you don’t end up with a whole motor that needs replacement.

Loud Clicking

This may be something as simple to repair as a loose outside panel that needs to be screwed down. But if your panels are secure and you’re still noticing this sound, then you may have a crack in your furnace’s heat exchanger. This is a major issue that could pose serious health risks.


Are you hearing a rumbling noise that sounds like it’s coming from deep inside your furnace? This might mean that your burner is dirty and unable to function as it should. Scheduling routine maintenance will help you avoid this problem altogether.

It’s vital that if you notice any of the above sounds, you give our professionals a call. Attempting to diagnose the source of a noise on your own can be harmful to you, and to your heating system. If you suspect a repair issue, the best thing to do is to shut down the furnace and wait for our HVAC technicians to arrive.

ACI Northwest is here to help with all of your furnace repair needs in Hayden, ID. Please don’t hesitate to contact us for helpful advice!

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