Use the following instructions to replace a fan module in the switch
The fan module is held in place by spring clips. As you pull, the clips will disengage and the fan will stop.
Fans with front-to-back airflow have red tabs and are labeled Air Out.
Fans with back-to-front airflow have blue tabs and are labeled Air In.
Push until the fan module snaps into place. The fan will automatically start to operate.