Replacing a system fan module

Procedures for the removal and installation of system fan modules.

This section provides procedures for replacing a failed system fan module. Within this CRU module, if one of the two internal rotors fails, then a fault occurs, indicating module failure. Illustrations in system fan replacement procedures show rear panel views of the enclosure, with the fan properly oriented for insertion into the rear panel of the enclosure.

If a system fan module fails, the remaining three fans are sufficient to maintain operation of the enclosure. You need not halt operations and completely power-off the enclosure when replacing only one system fan; however, a complete orderly shutdown is required if replacing multiple system fan modules simultaneously.

CAUTION:

Do not remove the cover from the system fan module due to danger from electric shock inside. Return the module to your supplier for repair.

See CAUTION bullets regarding electrostatic discharge and anti-static protection in the ESD precautions section.

Tip: The illustrations show PSU module replacement as you face the enclosure rear panel. See also Figure 1 and Figure 4.