PRINTER NOTE: Page size 9” x 9.25”. Align this page to top, right hand corner. Back box bleeds off
top and right edge. Left side of page extends to 9.25 inches.
Replacing the Cooling Fans
Note: There is no need to power off the DEU or the
computer system. The cooling fans are hot swappable.
1Use the Operator Control Panel to identify the failed
fan, refer to the illustration below to identify the
components.
Fan #1
Door Latch
Fan #2
Fan #2
Power Cable
Fan #1
Power Cable
Fan #1
Power Cable
Select “Hardware Menu” from the Main Menu and
choose “Component Status.” You may need to scroll
through the list with the arrows butto ns to locate
the failed component.
2Loosen the rear door panel access screw, using a
flat-blade screwdriver.
3Open the panel to gain access to the fans. The panel
is hinged.
4Disconnect the fan’s power cable connector.