Problem Determination and Service Guide - Public Support Login ...

Introduction
Power-on LED: See Operator information panel for the various states of the power-on
LED.
The following table describes the problems that are indicated by various combinations of
the power-supply LEDs and the power-on LED on the operator information panel and
suggested actions to correct the detected problems.
Power-supply LEDs
AC DC Error
Off Off Off No AC
power to
either power
supply or a
problem
with the AC
power
source
Off Off On No AC
power to
the server or
a problem
with the AC
power
source and
the power
supply had
detected an
internal
problem
Off On Off Faulty
power
supply
Off On On Faulty
power
supply
Table 3–1. Power-supply LEDs
Description Action Notes
1. Check the AC power to
the server.
2. Make sure that the power
cord is connected to a
functioning power source.
3. Turn the server off and
then turn the server back
on.
4. If the problem remains,
replace the power supply.
1. Replace the power supply.
2. Make sure that the power
cord is connected to a
functioning power source.
Replace the power supply.
Replace the power supply.
This is a
normal
condition
when no AC
power is
present.
This happens
only when a
second power
supply is
providing
power to the
server.
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