Chapter 6: Maintenance
221
Replace Cooling Unit Fan – M500f/i/p
The blowers (scroll fans) in the cooling units are replaced as individual parts.
There are two fans in each cooling unit. No tools are required for this procedure.
To replace a fan, do the following:
1. Verify that the Fan LED is amber or red and note whether it is Fan 1 or 2
(above).
2. Press the release button and pull the handle downward as shown above.
Cautions
• If the cooling unit you plan to remove contains the cache
backup battery, your system will be vulnerable to a power
failure. Temporarily set your cache policy to write-through
before starting this procedure. See “Logical Drive Settings” on
page 144 (WebPAM PROe) or “Logical Drive Settings and
Functions” on page 189. (CLU).
• If power service has failed, do not remove the cooling unit if
the Controller’s Dirty Cache LED is flashing. See “Unsaved
Data in the Controller Cache” on page 295.
Fan 2 LEDFan 1 LED
