H3C Technologies H3C S12500 Series Switches - Manual (Page 96)

86
Power supply system failure
Power monitoring module
Table 26 Power monitoring module LED description
LED Status Description
RUN
Steady on The power monitoring module is operating properly.
Off The power monitoring module is faulty.
MAJOR
Steady on
• At least one power supply is faulty.
• The switch of the power frame is off.
• A power supply is present, but no AC power supply is provided.
Turns on and
then goes off
A power supply is being inserted or removed.
Off The power supplies are operating properly.
MINOR Off Reserved
To troubleshoot the failures when the RUN LED of the power monitoring module is off:
1. Unplug and then plug the power monitoring module.
2. If the RUN LED is still off, replace the power monitoring module.
3. If the RUN LED is still off, contact H3C Technical Support for help.
Power supplies
Figure 62 LEDs on an AC power supply
(1) Input status LED (2) Output status LED (3) Over-temperature alarm LED (4) Fault LED
1
2
3
4