Q-Logic 8C Manuel D’Utilisation

5 – Diagnostics/Troubleshooting

Chassis Diagnostics

5-8

59042-01 A

The Input Power LED illuminates to indicate that the switch logic circuitry is 
receiving proper voltages. If the Input Power LED is extinguished, do the 
following:

1.

Inspect the power cords and connectors. Is the cord unplugged? Is the cord 
or connector damaged?

■

Yes - Make necessary corrections or repairs. If the condition remains, 
continue.

■

No - Continue.

2.

Inspect the AC power source. Is the power source delivering the proper 
voltage?

■

Yes - Continue

■

No - Make necessary repairs. If the condition remains, contact your 
authorized maintenance provider.

The Fan Fail LED illuminates to indicate a malfunction with the chassis fan. If the 
Fan Fail LED illuminates, isolate the switch from the fabric, unplug the switch from 
the AC power source, and contact your authorized maintenance provider.