Power supply and fan assembly unit fault indicators
TABLE 14
Power supply and fan assembly status LED patterns during normal operation
LED color Description Action required
No light Power supply and fan assembly is not receiving
power, or is off.
Verify that the power supply and fan
assembly is on and seated and the
power cord is connected to a
functioning power source.
Steady green Power supply and fan assembly is operating
normally.
No action is required.
Flashing green (for
more than 5
seconds)
Power supply and fan assembly is faulty for one of
the following reasons:
• The assembly is switched off (flashing for ~ 5
seconds, then off).
• The power cable is disconnected (flashing for ~ 5
seconds, then off).
• The power supply and fan assembly has failed.
NOTE: When the device is first powered on, the
power supply and fan assembly status LED flashes
until POST has completed.
Try one of the following:
• Check the power cable connection.
• Verify that the assembly is powered
on.
• Replace the power supply and fan
assembly.
Power supply and fan assembly unit fault indicators
Use one of the following methods to determine the status of the power supply and fan assemblies:
• Check the power supply and fan assembly status LED.
• In Web Tools, click the Power Status icon.
• Enter the psShow command at the prompt to display power supply and fan assembly status, as
shown in the following example:
Device:admin> psshow
Power Supply #1 is OK
Power Supply #2 is OK
Power supply and fan assembly task guide
You can perform an easy set of steps to install or replace a power supply and fan assembly or to
replace both power supply and fan assemblies. By default, both of the power supply and fan
assemblies are installed in the device.
Installing an additional power supply and fan assembly (hot-install)
If your device is up and running with a single power supply and fan assembly and you want to install
an additional power supply, complete the following steps.
78 Hardware Installation Guide
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