Troubleshooting Your System 145Troubleshooting System Cooling ProblemsProblem• Systems management software issues a fan-related error message.ActionEnsure that none of the following conditions exist:• System cover, drive blanks, or shrouds are removed.• Ambient temperature is too high.• External airflow is obstructed.• Cables inside the system obstruct airflow.• An individual cooling fan is removed or has failed (see "Troubleshooting aFan" on page 145).Troubleshooting a FanProblem• Systems management software issues a fan-related error message.• Front panel LCD indicates a problem with the fan.ActionCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is not coveredby your warranty. Read and follow the safety instructions that came with theproduct.1 Run the appropriate diagnostic test (see "Using Dell PowerEdgeDiagnostics" on page 163).2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet and peripherals.3 Open the system (see "System Cover" on page 66).4 Locate the faulty fan indicated by the LCD display or diagnostic software.For the identification number of each fan, see "Cooling Fans" on page 107.
