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17Power Supply Unit Status Indicators
Power Supply Unit Status
Indicators
The power supply unit status indicators show the status of
the power supply unit during operation and when the unit
is powered on. Whenever a power error is detected, it is
reflected immediately by the indicator.
Notes
• When the unit is powered on, the status indicators may
light momentarily in red and a whining sound may be
heard. This is not a malfunction.When some of the
power supply units are off and some are on, the status
indicators of the units which are off may light in red.
This is not a malfunction.
• Power all of the installed power supply units on.
Meaning of status indicator displays
Indicator
color
Status Description Steps to take
Green Lit Operating normally −
Red Lit Power supply unit fan
fault
Exchange the
fan unit
− Not lit Power supply unit
fault
Exchange the
power unit