How to Properly Clean a Furnace

To make sure your furnace is working properly, you really need to focus on cleaning these two main components: the blower and the filter. But before you focus on any of them, a longtime electrical, plumbing, and HVAC company Ongaro & Sons advises you to make sure there is no electricity or fuel in your furnace. You can do this by safely unplugging your furnace from its power source. Check your furnace’s manual for the location of its power switch, and make sure the switch is in the “off” position before proceeding any further.

Once done, you can move on to cleaning the fan compartment. This is where the fan is. Use a screwdriver to access the compartment and a vacuum cleaner to suck up any dust and dirt you find (via PlumbersStock).

The final step in cleaning your furnace is to wash or replace its filter. Just like cleaning under your furniture, cleaning your furnace filter is something to watch out for. After removing the filter from the service panel, check its dust level. If you cannot see through your filter due to the amount of dust it has accumulated, HomeAdvisor suggests swapping it out for a new filter or, if it’s reusable, simply rinsing it out and reinserting it into your furnace.

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