HP Surestore Disk Array 12h - And FC60 Service Manual page 593

Table 73
Symptom
One Power Supply LED
(FRU) is ON and the
other is off
Power Supply LED
(front cover) is on
The LEDs on both
power supply modules
are ON but all other
LEDs are off.
Possible Cause
A Power supply module is
turned OFF or
unplugged.
B Power supply module is
overheated or failed.
A Power supply module is
missing or not plugged
in properly.
B Power supply module is
overheated or failed.
A Defective DC Power
Harness
B Defective Power
Interface Board
Procedure
Plug in the power cord and turn ON the
power switch. If the LED remains off, go to
cause B.
Lower the room temperature if it is too high,
unblock enclosure vents if they are
obstructed, replace any failed fans in the
enclosure, or replace the power supply
module.
Insert and lock the power supply module
into place. If the Fault LED is still on, go to
cause B.
Lower the room temperature if it is too high,
unblock enclosure vents if they are
obstructed, replace any failed fans in the
enclosure, or replace the power supply
module.
– Replace the DC Power Harnesses. If this
does not resolve the problem, go to
cause B.
– Replace the power supply. See
Interface Board" on page
(cont'd)
"Power
578.
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