48Concurrent RPS and AC inputs• Symptom 1The system status LED is off.• SolutionTo resolve the issue:a. Verify that the AC power cord is securely connected to the switch, and the AC-input powerreceptacle on the switch and the connected AC power source are in good condition.b. Verify that the external AC power system is operating correctly.c. Verify that the switch is securely connected to the RPS.d. Verify that the RPS is operating correctly.e. Verify that the operating temperature of the switch is in an acceptable range, and the powermodule has good ventilation. Over-temperature can cause the power module to stopworking and enter protection state.f. If the issue persists, contact H3C Support.• Symptom 2The system status LED is on but the RPS status LED is steady yellow.• SolutionTo resolve the issue:a. Verify that the AC power cord is securely connected to the switch, and the AC-input powerreceptacle on the switch and the connected AC power source are in good condition.b. Verify that the external AC power system is operating correctly.c. If the issue persists, contact H3C Support.• Symptom 3The system status LED is on but the RPS status LED is off.• SolutionTo resolve the issue:a. Verify that the switch is securely connected to the RPS.b. Verify that the RPS is operating correctly.c. If the issue persists, contact H3C Support.Hot swappable power module failureThis section applies to the S5130-30F-HI, S5130-30C-HI, S5130-34C-HI, S5130-54C-HI,S5130-30C-PWR-HI, S5130-54C-PWR-HI, and S5130-54QS-HI switches.For the S5130-30F-HI, S5130-30C-HI, S5130-34C-HI, and S5130-54C-HI switches, examine thePWR1 or PWR2 LED of the switch to identify power module failure.For the S5130-30C-PWR-HI and S5130-54C-PWR-HI switches, examine the PWR1 or PWR2 LEDof the switch and the LEDs on the power module to identify power module failure.• For more information about the PWR1 and PWR2 LEDs on the front panel of the switch,see Table 24.• For more information about the LEDs on a power module, see H3C PSR360-56A PowerModule User Manual, H3C PSR720-56A Power Module User Manual, and H3C PSR1110-56APower Module User Manual.