a. Identify the failing fan by pressing the fan identify button (A) shown in Figure 15 on page 15.
An amber left or right fan-fault LED (C) on solid, as shown in Figure 16, indicates the faulty
fan.
b. Loosen the thumbscrew (A) that holds the fan in the power-supply assembly, as shown in
Figure 16.
c. Use the recessed fan handle (B) to pull the fan out of the power-supply assembly, as shown in
Figure 16.
If you removed the power supply or fan as part of another service action, or if you want to replace the
power supply or fan that you removed from the expansion unit, see “Replacing a power supply or fan in
a 5802 or 5877 expansion unit with the power turned off” on page 21.
Replacing a power supply or fan in a 5802 or 5877 expansion unit with
the power turned on
Learn how to replace a power supply or power-supply fan in a 5802 or 5877 expansion unit if you
removed a failing part and want to replace the power-supply assembly with the power turned on.
If your system is managed by the Hardware Management Console (HMC), use the HMC to replace a
power supply. For instructions, see Exchanging a part by using the Hardware Management Console.
If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to
replace a power supply in the server. For instructions, see Replacing a part by using the Systems Director
Management Console.
Determine if you are able to perform this procedure concurrently
Figure 16. Removing a power supply fan
16 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC
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