Synology DiskStation DS1817 - Replace System Fan; To replace the system fan

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Chapter 2: Hardware Setup
Replace System Fan
Your DiskStation will play beep sounds if either of the system fans is not working. Follow the steps below to
replace the malfunctioning fan with a good one.
To replace the system fan:
1
Shut down your DiskStation. Disconnect all cables connected to your DiskStation to prevent any possible
damages.
2
Fans are numbered as follows:
3
Remove the 4 screws that secure the fan panel.