User`s manual

Cooling System 57
4.2 Fan Alarm
The embedded alarm board monitors temperature & fan status.
Should a fan become disabled, the Fan LED will light up and an
audible warning will be heard. To disable the audible warning,
press the Alarm Reset button. The Fan LED will continue to flash
until the faulty fan is replaced.
Figure 4-2: Alarm LEDs and reset button
4.3 Fan Removal and Replacement Procedure
(cPCIS-6400U only)
To remove and replace a faulty fan module, follow the procedures
below. For safety reasons, only the cPCIS-6400U is field serviceable
by the user.
Front-Access Intake Fan
1. Loosen the screws attaching the front-access intake fan
module at the right side of the chassis.
2. Pull the faulty fan module out of the chassis and replace
with a functional fan module.
3. Reverse steps 1-2 to replace the fan module.