The information below describes the fault cause, action to be taken, and how the fault is cleared.
Fault cause:
The PSU diagnoses this fault if its temperature has reached or exceeded 45oC (113oF) for more than five seconds.
Fault management diagnoses this fault if the PSU's temperature has reached or exceeded 45oC (113oF) for more than five seconds and the chassis ambient temperature is within normal parameters.
Action in response to fault:
The PSU disables its 48V power output.
The PSU lights its Service Action Required LED and extinguishes its DC-OK LED.
Fault management lights the chassis Service Action Required LEDs.
Fault management notifies the ILOM management interfaces to update the PSU's fault state.
Fault management records the fault in the event log.
Fault clearing:
The PSU automatically clears this fault when its temperature falls below 45oC (113oF) for more than five seconds.
Fault management will not declare this fault cleared until the PSU is replaced or until an operator manually clears the fault.