Cleaning a Blower
Dust bunnies can accumulate on the blades of a fireplace fan and throw it out of balance. That causes vibration, noise and premature bearing wear. Cleaning a fireplace blower every few years keeps it running quieter and longer.
Remove the blower and suck out as much dust as possible with a shop vacuum. Gently brush across the fan blades with an old toothbrush, taking care not to bend the blades. Then vacuum a second time. Reposition the blower and test it for noise and smooth operation. If it runs without vibration, it’s good for another heating season.