32 Service Manual (AA-RS2GD-TE, July 2004)

FRU Removal and Replacement

185Edge Switch 2/24 Service Manual

RRP: Cooling Fan

Use the following procedures to remove or replace a cooling fan FRU from the

rear of the switch. No tools are required.

Removal

To remove a cooling fan:

1. Identify the defective cooling fan from the illuminated amber LED on the fan

or failure information at the HAFM appliance Hardware View.

2. Loosen the fan retaining screw in the upper right corner of the fan. The

retaining screw is captive and will remain in the fan assembly.

3. Grasp the fan handle and pull the fan FRU out of the chassis.

Replacement

To replace a cooling fan:

1. Remove the replacement cooling fan FRU from its shipping container.

2. Inspect the rear of the fan for bent or broken connector pins. If any pins are

damaged, obtain a new fan.

3. Position the fan FRU with its retaining screw at the upper right corner (the fan

cannot be inserted in any other position).

4. Push the fan FRU into the chassis to engage the connector pins. Ensure that

the fan FRU faceplate is flush with the chassis.

5. Engage the screw threads and lightly tighten the screw. Over-tightening the

screw may damage the FRU or chassis.

6. Inspect the fan FRU to ensure that the amber LED is extinguished. If the

amber LED is illuminated, go to “MAP 0000: Start MAP” on page 29 to

isolate the problem.

7. At the HAFM appliance Hardware View, click Event Log from the Logs

icon. The Event Log window displays. Ensure one of the following event

codes displays in the log:

310 to 315 — Nth cooling fan has recovered, where N is first to fourth (fan).