HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 Service Manual (A5 - Page 269

Troubleshooting Troubleshooting Table 36 Troubleshooting Power Supply Module Problems Symptom Possible Cause Procedure No power to the controller module (all Power LEDs off) Power switches are turned off. Turn on both power switches on the controller enclosure. Turn on the main circuit breakers in the rack, if applicable. Power cords unplugged. Make sure all power cords are plugged in securely. Power supply modules overheated or failed. Lower the room temperature if it is too high, unblock enclosure vents if they are obstructed, replace any failed fans in the enclosure, or replace the power supply module. One Power Supply LED A Power supply module is Plug in the power cord and turn on the (FRU) is on and the other is turned off or unplugged. power switch. If the LED remains off, go to off cause B. B Power supply module is overheated or failed. Lower the room temperature if it is too high, unblock enclosure vents if they are obstructed, replace any failed fans in the enclosure, or replace the power supply module. Power Supply LED (front cover) is on A Power supply module is Insert and lock the power supply module missing or not plugged into place. If the Fault LED is still on, go to in properly. cause B. B Power supply module is overheated or failed. Lower the room temperature if it is too high, unblock enclosure vents if they are obstructed, replace any failed fans in the enclosure, or replace the power supply module. The LEDs ON both power A Defective DC power supply modules are on but harness all other LEDs are off. - Replace the DC power harnesses. If this does not resolve the problem, go to cause B. B Defective Power Interface Board - Replace the power supply (see "Power Interface Board" on page 274). Controller Enclosure Troubleshooting 269