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Maintenance and troubleshooting
Power supply failure
Symptom
The LEDs on a power supply are not green.
You can use the LEDs on the power supply to identify a power supply failure. For more information
about the LEDs on a power supply, see
HPE 300W AC & 300W DC Power supplies User Manual
and
HPE 650W AC & 650W DC Power supplies User Manual
.
The LEDs on the power supply are steady green (active) or flashing green (standby) while the power
supply system is correctly operating.
Solution
To resolve the issue:
1.
Verify that the power cord is correctly connected.
2.
Verify that the power source meets the requirement.
3.
Verify that the operating temperature of the switch is in the normal range and the power supply
has good ventilation.
4.
If the issue persists, contact Hewlett Packard Enterprise Support.
To replace a power supply, see "
Installing/removing a power supply
Fan tray failure
Symptom
The system status LED on the switch is steady red and the system outputs an alarm message that
indicates a fan tray failure.
Solution
Installing/removing a fan tray
" to replace the failed fan tray. If the issue persists, contact Hewlett
Packard Enterprise Support.
Follow these guidelines when you install or remove a fan tray:
•
Do not power on the switch when the switch has no fan trays installed.
•
You must install two fan trays of the same model for the switch.
•
When a fan tray fails during the switch operation and the ambient temperature is not higher than
27°C (80.6°F), replace the fan tray within 24 hours and keep the failed fan tray in position before
replacement. If the ambient temperature is higher than 27°C (80.6°F), replace the fan tray
immediately.
•
Make sure all slots have a module or filler panel installed when the switch is operating.
•
When two fan trays fail during the switch operation:
{
For an HPE 5940 switch, finish replacing the fan trays within 2 minutes on an.
{
For an HPE 5940 48SFP+ 6QSFP+, HPE 5940 48XGT 6QSFP+, HPE 5940 48SFP+
6QSFP28, or HPE 5940 48XGT 6QSFP28 switch, finish replacing the fan trays within 1
minute.
