Environmental Control Board Led Status - Netstor NS370TB3 User Manual

2.2 Environmental Control Board LED Status

D2 LED: fan failure indicator
。D2 LED no light: both blower fan 1 and 2 are normal
。D2 LED red light: either blower fan 1 or 2 fails
D4 LED: fan 1 status
。D4 LED no light: blower fan 1 is normal
。D4 LED red light: blower fan 1 fails
D5 LED: fan 2 status
。D5 LED no light: blower fan 2 is normal
。D5 LED red light: blower fan 2 fails
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