Unplug the blower from its power source.
Remove the four screws at each corner of the blower cover with a Phillips head screwdriver.
Pull the cover away from the wood stove, along with the fan wheel and metal chute.
Mix 1 cup of oxygen bleach with 2 gallons of hot tap water in a bucket. Submerge the vented blower cover into the solution and allow it to soak for one hour.
Scrub the blower cover with a sponge to remove any buildup.
Rinse off the blower cover in cool water.
Dry the cover with a microfiber towel.
Reassemble the chute, wheel and cover then tighten the four screws in place.