Troubleshooting Your System 137Troubleshooting Power SuppliesProblem• System-status indicators are amber.• Power-supply fault indicators are amber.• Front panel status LCD indicates a problem with the power supplies.ActionCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. Before performing anyprocedure, see your Product Information Guide for complete information aboutsafety precautions, working inside the computer and protecting againstelectrostatic discharge.1 Run the appropriate online diagnostics test. See "Using PowerEdgeDiagnostics" on page 149.2 Locate the faulty power supply.The power supply's fault indicator is lit. See "Power Indicator Codes" onpage 20.NOTICE: You can hot-plug the power supplies. One power supply must beinstalled for the system to operate. The system is in the redundant mode whentwo power supplies are installed. Remove and install only one power supply ata time in a system that is powered on. Operating the system for extendedperiods of time with only one power supply installed, without a power supplyblank installed, can cause the system to overheat.Remove the faulty power supply. See "Removing a Power Supply" onpage 68.3 Ensure that the power supply is properly installed by removing andreinstalling it. See "Removing a Power Supply" on page 68 and "Installing aPower Supply" on page 69.NOTE: After installing a power supply, allow several seconds for the systemto recognize the power supply and to determine if it is working properly. Thepower indicator turns green to signify that the power supply is functioningproperly. See "Power Indicator Codes" on page 20.4 Check the indicators to see if the problem is resolved. If not, remove thefaulty power supply. See "Removing a Power Supply" on page 68.
