Remove and Replace the Dual Fan Module
You can remove and replace the dual fan modules while the chassis is running. There are two dual fan modules
in the rear of the chassis. The air flow moves from front to back (I/O side to non-I/0 side).
Removing both dual fan modules exposes the chassis to no airflow. Replace the dual fan modules within 30
seconds after removal to avoid overheating the chassis. If you wait longer than 30 seconds, the chassis may
power off automatically to prevent damage to components. The chassis does not power up and boot properly
if the dual fan modules are missing.
Caution
Safety Warnings
Take note of the following warnings:
Statement 1030—Equipment Installation
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1073—No User-Serviceable Parts
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
Statement 1093—Avoid Sharp Edges
Risk of personal injury. Avoid sharp edges when installing or removing replaceable units.
Warning
Step 1 Have the dual fan module ready for immediate insertion and near the chassis so that you can reinstall it within 30 seconds.
Step 2 To remove a fan module, face the rear of the chassis, and press the squeeze tabs on the sides of the fan module to loosen
it from the chassis.
Step 3 Grasp the handle and pull the fan module out of the chassis.
Cisco Secure Firewall 3110, 3120, 3130, and 3140 Hardware Installation Guide
70
Installation, Maintenance, and Upgrade
Remove and Replace the Dual Fan Module
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