Identifying power supply problems

Power supply LEDs			Description
AC	DC	Error	Description
Off	Off	Off	No AC power to the server or a problem with the AC power source. This is a normal condition when no AC power is present. See Server has no AC power
Off	Off	On	No AC power to the power supply, a problem with the AC power source, or a failed power supply. This condition occurs only when a second power supply is providing power to the server. See Error LED lights up for one power supply
Off	On	Off	Faulty power supply. See Faulty power supply
Off	On	On	Faulty power supply. See Faulty power supply
On	Off	Off	Power supply not fully seated (most typical), faulty power supply, or faulty system board. See Power supply AC LED lights up
On	Off or flashing	On	Faulty power supply. See Faulty power supply
On	On	Off	Normal operation
On	On	On	Power supply is faulty but still operational See Faulty power supply