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NOTE: Allow several seconds for the expansion enclosure to recognize the PSU and determine
its status. When the PSU is functioning properly, the Power OK indicator turns green and the
PSU fault and AC fault indicators are off.
8. In the Dell Storage Client, make sure that the replacement PSU is recognized and shown as up and
running.
Next steps
1. Use SupportAssist to send diagnostic data to Dell Technical Support Services.
2. Contact Dell Technical Support Services to let them know that you completed a repair.
Replacing Cooling Fan Modules
The SC180 expansion enclosure supports five cooling fan modules. If one cooling fan module fails, the
remaining fan modules continue to cool the
expansion enclosure.
NOTE: When a cooling fan module fails, the fan speed in the remaining modules increases
significantly to provide adequate cooling. The fan speed decreases gradually when a new cooling
fan module is installed.
Identifying the Failed Cooling Fan Module
To determine which cooling fan module failed, use the Dell Storage Client.
1. Click the Hardware tab.
2. In the Hardware tab navigation pane, select the Storage Center.
3. In the Hardware Alerts area, find the hardware alert that identifies the enclosure with the failed
cooling fan.
Figure 11. Hardware Alert Identifying the Enclosure with the Failed Cooling Fan
4. In the Hardware tab navigation pane, expand the enclosure identified in the previous step.
5. Select Cooling Fans. The status of each cooling fan is displayed in the Cooling Fans tab.
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Replacing SC180 Components