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When a fan fails the Fan Status LED on the management module blinks simultaneously with the switch Fault LED. In this case, the entire fan tray needs to be replaced. You cannot replace individual fans.
The fan tray is hot swappable. It can be removed and replaced without removing power from the switch. However, install the new fan tray immediately (after two minutes) after removing the old fan tray to avoid overheating and switch shutdown (after three minutes). The fan tray is provided with a hot-swap controller on the backplane to control the fan power interface during insertion and removal.
Although these procedures show the 6-slot chassis, the procedures are the same for the 12-slot chassis.
WARNING! To avoid contact with spinning fans, if you are hot swapping out the fan tray assembly, pull the assembly out one-inch and allow the fans to stop rotating (approximately 20 seconds) before pulling it all the way out. | |
To replace a fan tray:
