6-5To replace a hot swappable power module, refer to Installing a Power Module on page 3-12.OAP Card FailureThe S5800-60C-PWR supports the hot swappable OAP card. You can check whether the OAP card ofthe switch runs normally by viewing SLOT3 LED on the front panel of the switch and the LED on theOAP card.z For details about the SLOT3 LED on the front panel of the switch, refer to Table 1-12.z For details about the LED on the OAP card, refer to H3C OAP Card User Manual.When the OAP card functions normally, the corresponding LEDs should be steady green. Otherwise,check whetherz The model of the OAP card in use is supported by the switch.z The OAP card is installed correctly and the OAP card is well connected with the switch.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 an OAP card, refer to Installing an OAP Card on page 3-26.Hot Swappable PoE Module FailureThe S5800-60C-PWR supports the hot swappable PoE module. You can check whether the PoEmodule runs normally by viewing the SLOT4 LED on the front panel of the switch. For details, refer toTable 1-20.When the PoE module functions normally, the SLOT4 LED should be steady green. Otherwise, checkwhetherz The model of the PoE module in use is supported by the switch.z The PoE module is installed correctly and the PoE module is well connected with the switch.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 PoE module, refer to Installing a PoE Module on page 3-28.Fan FailureYou can check the system status LED and the seven-segment LED of an S5800 series to determinewhether the fans operate normally. If a fan failure occurs, the two LEDs give an indication, as shown inTable 6-2.