User's Manual
Table Of Contents
23
Chapter 3: System Maintenance
4
Find the malfunctioning fan. Lift up the fan to remove it.
5
Prepare a new fan and slide it into the the RS4021xs+. Make sure that the fan is aligned properly, as shown
below.
Replace Power Supply Unit (PSU)
If a PSU or its fan malfunctions, please see the instructions below to replace the malfunctioning PSU.
1
Unplug the power cord from the PSU that is to be replaced.
Note:
By pressing the Beep O button, you can silence the long beep when it sounds.
2
On the rear panel, push the lever of the PSU inward as shown.
3
Pull the PSU out of the RS4021xs+.
2
3
4
Prepare a new PSU. Insert it into the empty slot until you hear a click.