Chapter 3: System Maintenance; Replace System Fan - Synology DS1821+ Hardware Installation Manual

System Maintenance

Replace System Fan

If the cooling fan located on the back of the Synology NAS malfunctions, please follow the steps below to remove
the malfunctioning fan and replace it with a new one.
1 Power off your Synology NAS and remove the power cord.
2 Fans are numbered as shown below:
3 Remove the four screws that secure the fan panel.
4 Remove the malfunctioning fan:
a Pull out the fan panel from your Synology NAS.
b Carefully unplug the power cords located at the bottom of the fan socket as shown below.
18
1 2
3
Chapter