You must determine if the PDB is faulty before you replace it.
-> show /System/Power /System/Power Targets: Properties: health = OK health_details = - ... ->
For example, type:
-> show faulty Target | Property | Value --------------------+------------------------+------------------------------- /SP/faultmgmt/0 | fru | /SYS/PDB ... ->
If you see /SYS/PDB under the Value heading, the PDB is faulty.
If a FRU value different from /SYS/PDB is displayed, see Component Service Task Reference to identify which component is faulty.
See Identify Faulted Components.
Check the Fault class and Description fields for more information.
See Remove the PDB.