6
Operating power module failure
Symptom
A trap or log is generated indicating that an operating power module is faulty.
Solution
To resolve the issue:
1.
Execute the
display power
command to check whether the power module is in faulty or absent
state.
<H3C> display power
Slot 1:
Input Power: 60(W)
PowerID State Mode Current(A) Voltage(V) Power(W) FanDirction
1 Normal AC 5.08 11.84 60 PowerToPort
2 Absent -- -- -- -- --
2.
Observe the status LED on the power module.
The power module status LED has the following indications:
Steady green: The power module is operating correctly.
Flashing green: The power module has power input but is not installed on the device.
Steady red: The power module is faulty or in self-protection mode.
Flashing green/red alternatively: An alarm is present on the power module and the power
module is not in self-protection mode. The possible alarms include output overcurrent,
output overpower, and overtemperature.
Flashing red
−
The power module does not have power input, and the other power module installed on
the same device has power input.
−
The power module is in input undervoltage protection mode.
Off: The power module does not have power input.
3.
If the power module is in
Absent
state, no power module is in the slot or the power module is
not installed securely in the slot.
If the power module is in the slot but its status is
Absent
, and the status LED on the power
module is flashing green (connected to power) or off (not connected to power), remove and
reinstall the power module to make sure the power module is installed securely. Then check
whether the power module has changed to
Normal
state and whether its status LED is steady
green. If the issue persists, replace the power module.
4.
If the power module is in
Fault
state, do the following:
a.
If no power is present on the power module (the status LED flashing red), connect power to
the power module.
b.
If the power module is in high temperature (the status LED steady red or flashing red/green
alternatively) because of dust accumulation, remove the dust and then remove and reinstall
the power module. Execute the
display power
command to check whether the power
module has changed to
Normal
state. If the power module remains in
Fault
state, go to step
c.
Install the power module into an empty power module slot. Then execute the
display power
command to check whether the power module has changed to
Normal
state in the new slot.
If the power module remains in
Fault
state, replace the power module.
