Why is my furnace blowing cold air?

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Fan Runs, But There Isn’t Any Heat

If your furnace is running but not producing heat, there could be several causes.

Water Heater Working?

If your water heater is working properly, then the gas supply is not the issue (if you have a gas furnace, that is).

Check Filter

Check your filter. Does it need changing? Unless you have a high efficiency media filter, your filter should be changed monthly, as it can cause your furnace to blow cool air and/or perform inefficiently if overly dirty. If your filter is in correctly and usable, then it is time to call for service. 

Jay Rol – Owner, Rol Air Plumbing & HeatingJay Rol – Owner, Rol Air Plumbing & Heating
Zimmerman, Minnesota


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