HP A5272A - SureStore E Disk System SC10 Storage Enclosure, Service Manual

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Isolating Faults
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Problem
Description HW Event
Category LED
State STM
Status
Probable Cause/Solution
Installed
product does
not power on none System
power LED
off none – Neither power cord is plugged in.
– The power switch is not pressed.
– AC breaker is tripped.
– AC power source has failed.
– The PDU/PDRU is defective.
– Power switch is defective.
– A faulty component is causing power
supplies to turn off. Remove all
components and reinsert one at a time
until the faulty component is isolated.
System fault
LED is on none Power
supply
LED off Power
supply Not
Available – The power supply is not plugged in.
– The PDU/PDRU or primary power source
has failed.
Critical Part fault
LED on Critical A component has failed. See problem
descriptions below.
Audio alarm
when BCC
installed none BCC Fault
flashing Disk Not
Available BCC DIP switch settings do not match peer
BCC switch settings. Reset switches.
BCC Fault
LED is on Critical BCC Fault
on Critical BCC hardware is faulty. Replace the BCC.
Fan LED is
amber Critical Amber Critical Fan has slowed or stopped. Replace the
fan.