H3C Technologies H3C S9500E Series Switches - Manual (Page 81)

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Fan failure
Table 26 Fan LED description
LED Status Description
RUN
Off The fan tray has failed.
Steady on The fan tray is operating properly.
ALM
Off The fan tray is in normal state.
Steady on The fan tray is faulty.
When the RUN LED is off or the ALM LED is on, the fan tray fails.
To troubleshoot the fan tray:
1. If both LEDs are off, check the power supply to make sure it is working properly. For more
information, see "
Power supply failure ."
2. Check for blockage of the air intake and exhaust vents on the chassis. If they are blocked, clean
them to keep the air flowing.
3. Unplug the fan tray, and plug it in again to make sure it is seated properly.
4. Plug a spare fan tray into the slot. If the spare fan tray can work properly, you can conclude that
the old fan tray has failed.
5. If you fail to identify the cause, contact the local agents or technical support engineers for help.
MPU failure
Figure 53 MPU LEDs
(1) CF card status LED (CFS) (2) Network management port LED
(ACT) (3) Network management port LED
(LINK)
(4) MPU status LED (SFS) (5) MPU status LED (ACT) (6) MPU status LED (RUN)
(7) MPU status LED (ALM) (8) LPU status LED (RUN) (9) LPU status LED (ALM)
NOTE:
The appearance of the S9500E MPUs varies by model. Figure 53 takes LSR1SRP2C1 as an example.