User Guide

125
Fan unit
This section explains how to replace a fan unit. A fan unit can be replaced even if the blade
enclosure is powered on.
Important
Quickly replace a fan unit if the blade enclosure is powered on. If you use the blade
enclosure with the fan unit removed, the cooling efficiency will degrade. Make sure to install
a fan unit or fan unit slot cover.
1. Confirm which fan unit you are replacing.
2. Remove the fan unit. See "Installing a fan unit."
3. Install a new fan unit in the fan slot. Refer to "Installing a fan unit."
4. Make sure that the fan LED of the fan unit is green.
5. Confirm that the fan unit is recognized by the EM card. See "Checking operational status."