H3C S5810-50S Installation Manual

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6-2Power Module FailureHot Swappable Power Module FailureThe S5810 series switches support hot swappable power modules. You can check whether the powersystem of the switch runs normally by viewing the PWR1 or PWR2 LED on the front panel and of theswitch the LED on the power module.z For details about the PWR1 and PWR2 LEDs on the front panel of the switch, refer to Table 1-11.z For details about the LED on a hot swappable power module, refer to H3C PSR300-12A &PSR300-12D1 Power Modules User Manual.When the power supply system functions normally, the corresponding power module LEDs should besteady green. Otherwise, check whetherz The power module is switched on. (If the power module provides no switch, ignore this step.)z The switch power cord is properly connected.z The power supply meets the requirement.z The operating temperature of the switch is normal and proper ventilation is ensured for the powermodule.If the cause cannot be located in the preceding steps and the problem persists, you need to contactyour local sales agent or service engineer.To replace a hot swappable power module, refer to Installing a Power Module on page 3-8.Fan FailureYou can check the system status LED and the seven-segment LED of an S5810 series to determinewhether the fans operate normally. If a fan failure occurs, the two LEDs give an indication, as shown inTable 6-1.Table 6-1 Fan failure LEDs descriptionLED Mark StateSystem status LED SYS Steady redSeven-segment LED UnitThe LED displays F for fan failure.Only when the system status LED and the seven-segment LED are displayed as steady red and Frespectively does it indicate a fan failure.