User Service Guide, Fourth Edition - Server Expansion Unit

Chapter 5

Removal and Replacement

Removing and Replacing a Standby/Main Fan (Rear) Assembly

Removing the Rear Standby/Main Fan Assembly

Step 1. Identify the failed fan assembly. The table below defines the fan LED states.

Step 2. Loosen the two blue screws securing the fan to the chassis.

Step 3. Pull the fan from the chassis.

Replacing the Rear Standby/Main Fan Assembly

Step 1. Visually inspect the replacement part for proper number and revision.

Step 2. Position the fan assembly in the chassis.

Step 3. Push the fan into the connector.

Step 4. Tighten the two thumb screws to secure the fan to the chassis.

Step 5. The LED should be GREEN. See the previous table for a listing of LED definitions.

Table 5-2 Standby/Main Fan Assembly LED Indications

LED State Meaning

On Green Fan is at speed and in sync or not at speed less than 12 seconds

Flash Yellow Fan is not keeping up with speed/sync pulse for greater than 12 seconds

Red Fan failed or stalled, has run slow, or fast for greater than 12 seconds

Off Fan is not present, or no power is applied to fan, or the fan has failed