Chapter 5: Subsystem Maintenance and Upgrading
Immediate replacement:
Once you are notified that a
cooling module has failed, it should be replaced as soon as
possible. A failed module should only be removed from the
subsystem when you have a replacement immediately
available.
5.6.2
Replacing a Cooling Module
If one of the cooling modules fails, it must be replaced as soon as
possible. The cooling modules are secured to the PSU canisters with
retention screws. To replace a cooling module, follow the steps
below:
WARNING!
The fan replacement process should be completed within five
(5) minutes. If the process takes too long, the accumulated
heat can damage the subsystem.
Keep a failed module in its bay until you are ready to replace a
it.
Step 1.
Remove the PSU module that contains defective
cooling fans
. Please refer to the previous section for
how to remove a PSU.
Step 2.
Use a small-size Phillips screwdriver to remove the
six screws from the top of the PSU module.
Cooling Module Maintenance
5-17
