Clean the fans

Note: Make sure to clean all the fans.
  1. Unscrew the screws holding the grid in its place.
  2. Unscrew the screws holding the fan module in its place.
  3. Lift the fan module out from the roof module and disconnect DC connectors.
  4. Clean the parts under the fan module with a vacuum cleaner and a cloth.
  5. Clean the fans with an air duster.
    Note: Do not apply excessive pressure or suction to the fan blades.
  6. Connect the DC connectors and install the fan module.
  7. Reinstall the grid.