H3C S7500E-XS Series, Руководство по установке, Страница: 44 / 64

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Maintenance and troubleshooting
Power module failure
You can use the LEDs on the power module to identify a power module failure. For more information
about the LEDs on a power module, see H3C LSVM1AC650 & LSVM1DC650 Power Modules User
Manual .
The LEDs on the power module are steady green (active) or flashing green (standby) while the power
module system is correctly operating. If the LEDs behave in any other way, verify the following items:
•
The switch power cord is correctly connected.
• The power source meets the requirement.
•
The operating temperature of the switch is in the normal range and the power module has good
ventilation.
If the problem persists, contact the H3C technical support for help.
To replace a power module, see "
Installing/removing a power module ."
Fan tray failure
When an LSQM1HFANSCB fan tray has problems, the system status LED on the switch is steady red and
the system outputs alarm messages.
When an LSQM1BFANSCB fan tray has problems, the Alarm LED on the fan tray is steady yellow and
the system outputs alarm messages.
To replace a failed fan tray, see "
Installing/removing a fan tray ."
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:
{
Finishing replacing the fan trays within 2 minutes on an S7502E-XS switch.
{
Finishing replacing the fan trays within 1 minute on an S7504E-XS switch.