The information below describes the fault cause, action to be taken, and how the fault is cleared.
Fault cause:
A rear fan's tachometer is out of range.
Action in response to fault:
If two or more fans have faulted, all rear fans blast.
The fan's Service Action Required LED is lit.
The chassis Service Action Required LEDs are lit.
The ILOM management interfaces are updated to reflect the fault.
The fault is recorded in the event log.
Fault clearing:
The rear fan module must be replaced or repaired. Note that when the module (consisting of two fans) is removed, all rear fans blast.