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1. Inside the Netstor storage enclosure, the front bottom part, there is an
environmental control board; locate this board.
2. On the environmental control board, there are four LEDs indicating the four
12x12 cm cooling fans inside the Netstor unit.
9. Troubleshooting
9.1 Fan LED showing red light
When one of the cooling fans within Netstor unit fails, the fan LED in front of
NS780TB3 enclosure will show red light. The approach to distinguish which
cooling fan in the Netstor unit has the issue is given as follows.
As either of the above four LEDs shows red light, the corresponding cooling fan fails.
(A) D4 LED refers to the front top fan
(B) D5 LED refers to the front bottom fan
(C) D6 LED refers to the rear bottom fan
(D) D7 LED refers to the rear top fan
(B)
(A)
(C)
(D)
