TROUBLESHOOTING

Diagnosing Power Problems with the LED Indicators

The Power and RPU LED indicators work in combination to indicate power status as follows.

Table A-2 Power/RPU LED Indicators

Power LED

RPU LED

Status

 

 

 

Green

Green

Internal power functioning normally; RPU is

 

 

present.

 

 

 

Green

Amber

Internal power functioning normally; RPU plugged

 

 

in but faulty.

 

 

 

Green

Off

Internal power functioning normally; RPU not

 

 

plugged in.

 

 

 

Amber

Green

Internal power faulty; RPU delivering power.

 

 

 

Off

Off

Both internal power and RPU unplugged or not

 

 

functioning.

 

 

 

Power and Cooling Problems

If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. However, if the unit powers off after running for a while, check for loose power connections, power losses or surges at the power outlet, and verify that the fans on the unit are unobstructed and running prior to shutdown. If you still cannot isolate the problem, the internal power supply may be defective.

A-2

Page 66
Image 66
SMC Networks SMC6826MPE manual Power and Cooling Problems, Diagnosing Power Problems with the LED Indicators