H3C S5120-HI Series Installation Manual

Also see for S5120-HI Series: Quick start Configuration guide Compliance and Safety Manual Security configuration guide Configuration guide

Contents

H3C S5120-HI Series Installation Manual Manual pdf 58 page image

49Maintenance and troubleshootingPower module failureLook at the PWR1 or PWR2 LED of the switch to identify a power module failure. For more informationabout the PWR1 and PWR2 LEDs on the front panel of the switch, see Table 14.If the power module system is correctly operating, the power module status LEDs are steady green. If theLEDs behave in any other way, verify the following items:• The switch power cord is properly connected.• The power source meets the requirement.• The operating temperature of the switch is in the normal range and the power module has goodventilation.If the problem persists, contact H3C for help.To replace a hot swappable power module, see "Installing/removing a power module."Fan failureCAUTION:For the S5120-28SC-HI and S5120-52SC-HI switches, you can replace the fan tray without powering offthe switch. To prevent overheating, replace the failed fan tray within 2 minutes.You can look at the system status LED and the seven-segment LED of an S5120-HI switch to identify a fanfailure. If both LEDs are behaving as described in Table 8, a fan failure occurs.Table 8 LED behaviors that identify a fan failureLED Mark StateSystem status LED SYS Steady redSeven-segment LED UnitThe LED displays a flashing F character.The S5120-34C-HI and S5120-58C-HI switches use fixed fan trays. If a fan failure occurs, promptlycontact H3C for help.The S5120-28SC-HI and S5120-52SC-HI switches use hot swappable fan trays. When the fan tray fails,use the display fan command to verify that the expected airflow direction is the same as the airflowdirection of the fan tray. If not, use the fan prefer-direction command to modify the configuration.If the problem still exists, the fan tray might have failed. You can replace the fan tray as described in"Installing/removing a fan tray."