Owners Manual

Replace a Power Supply and Cooling Fan Module
Use this procedure to replace failed a power supply/cooling fan module.
Prerequisites
1. Use Storage Manager to send SupportAssist information to Technical Support.
2. Use Storage Manager to edit the Storage Center settings and set the operation mode of the Storage Center to Maintenance mode.
About this task
You can replace power supply/cooling fan modules one at a time without shutting down the storage system.
Steps
1. Press the power switch on the power supply/cooling fan module to turn it off.
To prevent the module from overheating, replace it within 3 minutes.
2. Remove the hook-and-loop strap that secures the power cable to the LED handle and disconnect the power cable from the power
supply/cooling fan module.
Figure 8. Removing the Hook and Loop Strap from the Power Cable
3. Push the release tab on the power supply/cooling fan module to the right and use the handle to slide the module out of the chassis.
CAUTION:
The power supply/cooling fan modules are heavy. To avoid injury, use both hands while removing the
module.
14 Replacing Storage System Components