IBM 86624RY Maintenance Manual - Page 259

See Power, The ac and dc Power LEDs on the power supply provide

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Power supply LEDs The ac and dc Power LEDs on the power supply provide status information about the power supply. See "Power supplies" on page 250 for the location of these LEDs. The following table describes the ac and dc Power LEDs. AC Power LED On On Off DC Power LED On Off Off Description and action The power supply is on and operating correctly. There is a dc power problem. Possible causes: 1. The Power Control button on the front of the server is in the Off position. Action: Press the Power Control button to start the server. 2. The power supply has failed. Action: Replace the power supply. If the problem persists, go to "General checkout" on page 8. There is an ac power problem. Possible causes: 1. There is no ac power to the power supply. Actions: Verify that: The power cord is properly connected to the server. The power outlet functions properly. 2. The power supply has failed. Action: Replace the power supply. If the problem persists, go to "General checkout" on page 8. Netfinity 5500 M20 - Type 8662 251

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Power supply LEDs
The ac and dc Power LEDs on the power supply provide
status information about the power supply.
See “Power
supplies” on page
250 for the location of these LEDs.
The following table describes the ac and dc Power LEDs.
AC Power
LED
DC Power
LED
Description and action
On
On
The power supply is on and
operating correctly.
On
Off
There is a dc power problem.
Possible causes:
1.
The Power Control button
on the front of the server is
in the Off position.
Action:
Press the Power
Control button to start the
server.
2.
The power supply has
failed.
Action:
Replace the
power supply.
If the problem persists, go to
“General checkout” on page
8.
Off
Off
There is an ac power problem.
Possible causes:
1.
There is no ac power to the
power supply.
Actions:
Verify that:
±
The power cord is
properly connected to
the server.
±
The power outlet
functions properly.
2.
The power supply has
failed.
Action:
Replace the
power supply.
If the problem persists, go to
“General checkout” on page
8.
Netfinity 5500 M20 - Type 8662
251