Check the fan for dirt. Both sides. Often times there's a tiny section of dirt that gets dislodged or sticks to a fan blade, usually right near the tip.
Or there's a wire touching the fan that got moved during the clean.
Check the fan for dirt. Both sides. Often times there's a tiny section of dirt that gets dislodged or sticks to a fan blade, usually right near the tip.
Or there's a wire touching the fan that got moved during the clean.