Troubleshooting
35
4.3 LEDs
Green LEDs are always used for good or positive indication, flashing Green/Amber if non-critical
conditions exist. Amber LEDs indicate there is a critical fault present within the module.
4.3.1 PSU/Cooling Module
The PSU/Cooling LEDs are shown in
.
• Under Normal conditions the LEDs should all be illuminated constant GREEN
• If a problem is detected the color of the relevant LED will change to AMBER.
Figure 4–1
AC PSU LEDs
Table 4–1
AC PSU/Cooling Module LED States
Status
PSU OK
(Green)
AC Fail
(Amber)
Fan Fail
(Amber)
Power Fail
(Amber)
No AC Power (either PSU)
OFF
OFF
OFF
OFF
No AC Power (this PSU only)
OFF
ON
OFF
ON
PSU On OK
ON
OFF
OFF
OFF
PSU Fault (Over temp, over volts, over current)
OFF
OFF
OFF
ON
Fan Fault
OFF
OFF
ON
X
