1Run the appropriate online diagnostics test. See "Using Server Administrator Diagnostics" on page 153.

2Locate the faulty power supply.

The power supply's fault indicator is lit. See "Power Indicator Codes" on page 18.

NOTICE: You can hot-plug the power supplies. One power supply must be installed for the system to operate. The system is in the redundant mode when two power supplies are installed. Remove and install only one power supply at a time in a system that is powered on. Operating the system for extended periods of time with only one power supply installed, without a power supply blank installed, can cause the system to overheat.

Remove the faulty power supply. See "Removing a Power Supply" on page 76.

3Ensure that the power supply is properly installed by removing and reinstalling it. See "Replacing a Power Supply" on page 77.

NOTE: After installing a power supply, allow several seconds for the system to recognize the power supply and to determine if it is working properly. The power indicator turns green to signify that the power supply is functioning properly. See "Power Indicator Codes" on page 18.

4Check the indicators to see if the problem is resolved. If not, remove the faulty power supply. See "Removing a Power Supply" on page 76.

5Install a new power supply. See "Replacing a Power Supply" on page 77. If the problem persists, see "Getting Help" on page 167.

Troubleshooting System Cooling Problems

Problem

Systems management software issues a fan-related error message.

Action

Ensure that none of the following conditions exist:

Ambient temperature is too high.

External airflow is obstructed.

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Troubleshooting Your System

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Dell DL2000 owner manual Troubleshooting System Cooling Problems