Lenovo ThinkServer RD220 3797 Series Installation And User Manual page 165

Table 16. Power-supply LEDs
Power-supply LEDs
AC DC Error
Off Off Off
Off Off On
Off On Off
Off On On
On Off Off
On Off or On
Flashing
On On Off
On On On
Description Action
No ac power to
1. Check the ac power to the server.
the server or a
2. Make sure that the power cord is
problem with the
connected to a functioning power
ac power source
source.
3. Turn the server off and then turn the
server back on.
4. If the problem remains, replace the
power supply.
No ac power to
1. Replace the power supply.
the server or a
2. Make sure that the power cord is
problem with the
connected to a functioning power
ac power source
source.
and the power
supply had
detected an
internal problem
Faulty power Replace the power supply.
supply
Faulty power Replace the power supply.
supply
Power supply not
1. Reseat the power supply.
fully seated,
2. If the 240V failure LED on the system
faulty system
board is lit, have the system board
board, or faulty
replaced (trained service technician
power supply
only).
3. If the 240V failure LED on the system
board is not lit, replace the power
supply.
Faulty power Replace the power supply.
supply
Normal operation
Power supply is Replace the power supply.
faulty but still
operational
Notes
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.
Typically indicates
that a power supply
is not fully seated.
Chapter 7. Solving problems
149