Table A-1 Troubleshooting Chart

 

 

 

Symptom

 

Action

 

 

 

Fan LED is Off

 

• The unit is powered off.

 

 

 

Thermal LED is

 

• Indicates a high temperature that is approaching an

Flashing Yellow

 

over-temperature condition.

 

 

• Check that the unit's cooling fans are operating normally.

 

 

• Power off the RPU unit and allow to cool.

 

 

• If the condition persists, contact Technical Support.

 

 

 

Power and Cooling Problems

If the PWR LED 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, then the internal power supply may be defective. In this case, contact your distributor for assistance.

Installation

Verify that all system components have been properly installed. If one or more components appear to be malfunctioning (such as the power cord or RPU cable), test them in an alternate environment where you are sure that all the other components are functioning properly.

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SMC Networks SMCRPU14 manual Power and Cooling Problems, Flashing Yellow