# Troubleshooting: Temperature Issues

> 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.

Cooling of the entire system or individual components inside the system can be affected by the following conditions:

- Ambient temperature surrounding the system may be too high
- Airflow intake and output for the system may be obstructed
- Cables inside the system may be obstructing the cooling fan intake or output
- An individual cooling fan has failed or is improperly installed
- An individual heat sink has failed or is improperly installed
- Voltage is too high

Run the diagnostics tests for temperature modules to locate and diagnose temperature problems.

To maintain proper cooling while the system is on, ensure that none of the conditions exists. You may need to perform one of the following operations:

- If an individual cooling fan has failed, replace the fan.
- If an individual heat sink has failed, replace the heat sink.
- Adjust the voltage.
- Verify all cables, vents, and brackets are properly installed and are unobstructed.

Refer to the documentation for your server for instructions about how to install and replace components.

Related Topics

Troubleshooting the Service Processor