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Fan LEDs
•
Solid green—fan function is normal.
•
Flashing yellow—there is a fan fault.
•
Off—fan is off.
Fan module installation
The fan modules in the S4100–ON Series (S4128F-ON and S4148F-ON) switch are field replaceable.
When looking at your switch, Slot 1 is on the left side of the switch and Slot 4 is on the right side of the switch.
CAUTION:
DO NOT mix airflow directions. All fans must use the same airflow direction—reverse or normal. If you mix the airflow
direction, to avoid overheating the switch, correct the mixed airflow.
1
Take the fan module out of the shipping box.
2
Slide the module into the bay.
Figure 20. S4100–ON Series fan modules installation
1
Fan unit
Fan module replacement
To request a hardware replacement, see
CAUTION:
Complete the following steps within one minute or the switch temperature could rise above safe thresholds and the
switch could shut down:
1
Slide the fan module out of the bay.
2
Slide the replacement module into the bay.
34
Fans
Dell EMC
support.