@thediytraill

The outdoor condenser clogs with leaves and dirt over a season, which makes it work harder and wear out faster. Pull the grille, vacuum the debris, and rinse the coils from the inside out before the cooling season.

A bathroom fan clogged with dust and grime moves less air and runs louder. Drop the cover, unplug and unscrew the fan unit, vacuum both halves, and reassemble.