D20 Blowers
Before performing the following procedure, read “Safety Considerations” on page 53.
Each cooling blower assembly has a green LED and an amber LED. The green LED
indicates when the cooling blower is receiving power. A blinking amber LED indicates
when the cooling blower needs attention from a potential cooling problem.
Attention: If the I/O subsystem does not have two functional power supplies installed,
do not remove a blower with the power turned on. If only one power supply is
functional, removal of a blower will cause the system to turn power off.
Hot-Swap Blower Removal
To remove a hot-swap blower, do the following:
1. Put the Model D20 subsystem into the service position as described in “D20 Service
Position” on page 125.
2. Locate the cooling blower assemblies, as shown in the following illustration.
3. Pull out the snap button located on front flange of the failing blower.
4. Using the snap button as a handle, pull the front of the blower up, allowing the back
edge to pivot on a recessed ledge located just below the back edge of the blower.
Note: Using the snap button, lift the blower from the chassis. The blower connector
will disconnect from its docking connector, which is located on the underside
of the blower.
5. Pull the blower away from the system. Ensure that the two back tabs, located on
the bottom back edge of the blower assembly, have cleared their retaining slots.
134 Eserver pSeries 7311 Model D10 and Model D20 Service Guide
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