Install Guide

Fan LEDs
• Solid green—Fan function is normal.
• Flashing yellow—There is a fan fault.
• O—Fan is o.
Fan module installation
The fan modules in the S5148F-ON switch are eld replaceable. Module slot 1 is on the left side of the switch; module slot 4 is on the right
side of the switch.
CAUTION: DO NOT mix airow directions. All fans must use the same airow direction—reverse or normal. If you mix the airow
direction, to avoid damage to the switch, you must correct the mixed airow .
1 Take the fan module out of the shipping box.
2 Slide the module into the bay.
Figure 19. Fan module installation
• 1—Fan module
Fan module replacement
To request a hardware replacement, see Dell EMC support.
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.
Fan air lter replacement
Environmental factors can decrease the amount of time required between air lter replacements. Check the environmental factors regularly.
An increase in temperature and/or particulate matter in the air might aect performance.
CAUTION
: Check the fan air lters at six-month intervals and replace them as necessary. To accurately determine air lter
replacement intervals, regularly monitor the speeds of the cooling fans. An increase in overall fan speed may indicate a clogged
lter.
36 Fans