IBM 1611-16E, Installation Manual

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The switch continues to operate when there is one failed fan module. If one fan
module fails, the switch sends an error message. If a second fan module fails, the
switch sends an error message, writes a failure log to flash memory, and shuts
down.
Each fan module has a green LED that is visible from the rear panel. The LED
shows the status of the fan module, as follows:
Table 17. Fan LED states
LED state Description
Lit Fans are operational.
Off Fan unit has no power.
Flashes Fan speed has failed. Replace the fan
module.
Removing the fan module
To remove the fan module, complete the following steps:
1. Loosen the retainer screw.
2. Grasp the extractor handle and gently pull the fan module from the slot.
Attention: Replace the fan module within 5 minutes to avoid overheating the
switch.
Replacing the fan module
To replace a fan module, complete the following steps:
1. If necessary, remove the filler plate from the appropriate slot. Loosen the
retainer screws and slide the filler plate out of the slot.
2. Remove the fan module from the antistatic shielded bag.
3. Slide the fan module into the card guides in the open slot and gently push it all
the way into the slot, so that it firmly engages with the connector (see the
illustration). Each fan module has a mechanical guide key to prevent you from
inserting the module incorrectly.
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IBM System Networking RackSwitch G8316, Type 8036 and Type 1611-16E: Installation Guide