5. Remove the two #4 sheet metal screws from each side of the chassis.
6. Remove the top cover and set it aside.
7. Remove the old fan by removing the four #6 screws holding the fan in place. Depending on the age of the Nexia
unit, these screws will be held in place by aircraft nuts or by thread-forming screws without the need for nuts. Note
the orientation of the fan before removing it, so that the replacement fan can be installed in the same orientation.
8. The fan has a 2-conductor wire that connects to the main board. Note the orientation of this connector so that the
new fan's connector can be installed in the same orientation. The correct orientation might be different than the
photo below. Disconnect the fan from its connector on the board and remove the fan from the chassis.
9. Install the new fan using the four #6 screws that held the old fan in place. Before installing the new fan, ensure that
the opening is clear. Also, please remember that only minimal tightness is needed for fan screws. Over-tightening
the screws can cause the fan to make excessive noise.
10. Plug the fan connector into the board, where the old fan connector was plugged in. Ensure that the polarity and
orientation of the connector is correct. Depending on the age of the unit, the correct orientation may look different
than the photos in this article.
Copyright 2013-2020 Biamp Systems
http://support.biamp.com/
2
