32
Fan failure
Symptom
The OK LED is off or the FAIL LED is on.
Solution
To resolve the issue:
1.
If both LEDs are off, verify that the power modules 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 to keep good ventilation. If you install air filters, remove the air filters, clean them, and
install them again.
3.
Verify that the fan tray is fully seated. You can remove the fan tray and then install it again.
4.
Verify that the empty interface module slots and power module slots are installed with filler
panels. If not, install filler panels for them to guarantee good ventilation.
5.
If the issue persists, contact H3C Support.
MPU failure
Symptom
The RUN LED is off.
Solution
To resolve the issue:
1.
Verify that the power module operates correctly. For more information, see "
."
2.
Verify that the MPU is fully seated. You can remove the MPU and then install it again, and make
sure the MPU is fully seated.
3.
Press the RESET button of the MPU to reset the MPU. After the MPU is reset, verify that the
corresponding RUN LED is on.
4.
If the gateway has empty MPU slots, install the MPU into an empty MPU slot, and verify that the
MPU can operate correctly.
5.
If the issue persists, contact H3C Support.
Interface module, service module, or switching
fabric module failure
Symptom
The RUN LED on the MPU for a card is off.
Solution
To resolve the issue:
1.
Verify that the MPU is operating correctly. For more information, see "
."
2.
Verify that the software version is compatible with the card. If not, upgrade the software to a
compatible version.
3.
Calculate the total power consumption, and make sure your power modules can provide
enough power. For more information, see "
Appendix B FRUs and compatibility matrixes
."
