Isolating Faults - HP Surestore HVD10 - Disk System Service Manual

Isolating Faults

Problem LED
Description State
Disk system System power
fails to power LED and
on when power supply
installed LED are off
System power
LED is off;
power supply
LED is amber
Alarm sounds System fault
at startup LED and BCC
fault LED flash
System fault Power supply
LED is on LED is off
Fan LED is
amber
Power supply
LED is amber
106
Probable Cause/Solution
– Power cord is not plugged in.
– The power button is not pressed.
– AC breaker is tripped or AC power source has failed.
– The PDU/PDRU is defective. Replace.
– Power supply is faulty. Replace.
A faulty component is causing power supplies to turn off. Remove
all components and reinsert one at a time, starting with the power
supplies, until the faulty component is isolated.
– An incompatible BCC is installed in the second slot.
– DIP switch settings on secondary BCC are incompatible with
the primary BCC.
– A redundant power supply is present but not connected to AC.
– The PDU/PDRU or primary power source for the (redundant)
power supply has failed.
Fan has slowed or stopped. If the fan is not redundant, shut down
the disk system. Replace fan.
– Power supply hardware is faulty. If the power supply is not
redundant, shut down the disk system. Replace power supply.
– An incompatible or defective component caused a temporary
fault. Unplug the power cord and wait for the LED to turn off.
Reinsert the power cord. If the fault persists, replace the power
supply.