Do you have a forced air heating system in your home? It's possible that the fan hasn't been cleaned in years, which pushes dirty air through your vents every time you turn the heat on. A dirty fan can also cause the system to be less energy efficient over time. Thankfully, cleaning a furnace fan is a simple task you can do on your own. Here are some tips for cleaning your furnace fan.
How To Access The Fan
It should be simple to find your furnace's fan. It is typically located behind an access panel on the front side of your furnace. There should be a vent on this panel that allows you to look inside, so you can even see the fan in there before you open up the panel. Shut down the furnace before you plan on opening up the access panel, and be prepared to have a screwdriver on hand to remove a few screws.
How To Remove The Blades
The fan blades may look clean at first glance, but there can be a layer of dirt on the rear side of the blades and on the rod that they are attached to. The rod should have lubrication on it, which will make it a magnet for dirt and dust.
You'll want to take off each blade so that you can clean both sides and easily reach the rod. There should be a bolt located the blade that you can remove, which will then allow you to pull those fan blades off the rod. When doing so, try your best not to lose washers or bearings that are on the blades as you take them off the rod. When there is more than one washer, keep track of where each washer came from so that the blades can go back together properly when you are finished.
Wipe off every part of the assembly, which includes the blades, rod, and washers, with a damp rag that you can easily dispose of. You do not need to use any special chemicals to clean the parts. It will also help to use a vacuum to suck out as much dirt and debris from inside the furnace while you have it open with the blades removed.
Reassemble all of the parts in the same way that you took them apart, and you should be good to go. Power the furnace back on and turn on the unit to make sure everything is working properly.
For professional help, contact a local HVAC technician.