Replace a Fan Module

Pre-Installation Requirements

You need a 1/4-inch flat-blade screwdriver to replace a fan module.

Caution

Be sure to finish the replacement procedure promptly. The switch could overheat if left without cooling for an extended period.

Remove a Fan Module

Use the following instructions to remove a fan module.

1. Completely loosen the captive retaining screws on the fan module.

   On most switch models, the fan module has two retaining screws at the bottom corners of the module, as shown in Removing a Fan Module.

   On some switch models, the fan module has a single retaining screw at the top right corner of the module.

2. Slide the fan module out of the switch and set it aside.

   

   Removing a Fan Module

   

Replace or Install a Fan Module

Use the following instructions to install a fan module.

1. Verify that the airflow direction on the fan module matches that of the installed power supplies and any installed fan modules.

   Fan modules labeled Air Out provide front-to-back airflow.

   Fan modules labeled Air In provide back-to-front airflow.

2. Carefully slide the replacement fan module into the switch.

   

   Installing a Fan Module

   

3. Align and fully tighten the captive retaining screws.