Indicator LEDs
The exhaust fan assembly has four indicator LEDs located at the top front of the rack. The LEDs show the
condition of the exhaust fan assembly and power to the fan assembly.
LED 1
LED 2
LED 3
LED 4
Figure 54. Rack Indicator LEDs
Green
PDU 1 and PDU 1 fans normal
Amber
PDU 1 fan failure
Green
PDU 2 and PDU 2 fans normal
Amber
PDU 2 fan failure
Appendix D. Back-to-Back Racking
Troubleshooting
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