Fan Tray Failure; Mpu Failure - H3C CR16000-M Installation Manual

1. If a status LED is orange, the power supply is in high temperature and has transitioned to
over-temperature protection state. Be sure that adequate cooling and heat ventilation is
provided for the device.
2. If a status LED is red, the power supply has transitioned to a self-protection state because of a
power issue. Check for and resolve the output short-circuit, output overcurrent, output
overvoltage, input undervoltage, or remote disconnection issue.
3. Examine the power cord connection. If the power cord is loose, connect the power cord again. If
the power cord is broken, replace it.
4. Examine the power supply installation. If the power supply is installed securely, reinstall the
power supply to make sure it has a close contact with the backplane of the router.
5. Examine the power source. Make sure the power source operates correctly and provides a
voltage as required by the router.
6. If the router has an empty power supply slot, remove the power supply, install the power supply
in the empty power supply slot after all LEDs on the power supply are off, and verify that the
power supply can operate correctly.
7. Install a new power supply of the same model in the slot where the original power supply
resides, and connect it to the same power input end. If the new power supply operates correctly,
the old power supply has failed. You must replace the old power supply.

Fan tray failure

The MPU provides a FAN LED to indicate the operating status of fan trays. The FAN LED is steady
green when the fan trays are operating correctly.
Each fan tray has a RUN LED to indicate its operating status. The RUN LED is steady green when
the fan tray is operating correctly.
Symptom
•
On the MPU, the FAN LED is off or steady red.
•
The RUN LED on a fan tray is off or steady red.
Solution
To resolve the issue:
1. If all the LEDs on the router are off, verify that the power supplies are operating correctly. For
more information, see
2. Verify that the air inlet and outlet vents of the chassis are not blocked. If they are blocked, clean
them for good ventilation.
3. Remove and reinstall the fan tray to make sure it is installed securely in the slot.
4. Verify that the unused interface module slots and power supply slots are installed with filler
panels.
5. If the issue persists, contact H3C Support.

MPU failure

When an MPU is operating correctly, the RUN LED on it flashes at 0.5 Hz and the ALM LED is off.
Symptom
The RUN LED on an MPU is off or steady on.
Solution
To resolve the issue:
"Power supply failure".
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