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Maintenance and troubleshooting
Power module failure
Fixed power module failure
The switch uses fixed power modules, and supports three power input modes: AC input, RPS DC
input, and concurrent AC and RPS DC inputs.
Look at the system status LED and the RPS status LED of the switch to identify power system failure.
Table 9 Description for the power failure indication LEDs
The switch is powered off.
The AC input is normal, and the RPS is in position or operating
correctly.
RPS power input is normal, but AC input has failed or AC input is
not connected.
AC input
Symptom
The system status LED is off.
Solution
To resolve the problem:
a. Verify that the AC power cord is securely connected to the switch, and the AC-input power
receptacle on the switch and the connected AC power outlet are in good condition.
b. Verify that the external AC power system is operating correctly.
c. Verify that the operating temperature of the switch is in an acceptable range, and the power
module has good ventilation. Over-temperature can cause the power module to stop
working and enter protection state.
d. If the problem persists, contact Hewlett Packard Enterprise Support.
RPS DC input
Symptom
The system status LED or RPS status LED is off.
Solution
To resolve the problem:
a. Verify that the switch is securely connected to the RPS.
b. Verify that the RPS is operating correctly.
c. Verify that the operating temperature of the switch is in an acceptable range, and the power
module has good ventilation. Over-temperature can cause the power module to stop
working and enter protection state.
d. If the problem persists, contact Hewlett Packard Enterprise Support.