# Troubleshooting: Fan Components

Fans cool other system components.

> CAUTION: Do not attempt to service the system except as explained in the documentation. Only trained service technicians should remove the system cover to access any of the internal components. Refer to the documentation for your server for complete safety information before attempting to service your system.

Visually Inspecting Your System

Improperly set controls and loose or improperly connected cables are common causes of problems with hardware components. When investigating a system problem, first check all the external switches, controls, and cable connections. If this does not resolve your problem, then visually inspect the system's interior hardware for problems such as a loose card, cable connector, or mounting screw. Refer to Visual System Inspection for instructions about how to verify that your hardware components are properly installed.

Troubleshooting the Fan Component

Following are possible causes of problems with the fan component:

- Fan Speed problems
- System Power problems

Run the diagnostics tests for fan modules to locate and diagnose problems with fans.

Related Topics

Troubleshooting the Service Processor

Fan Speed Issues