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3 Remove the failed controller fan, as shown in
a Lift up the lever on the controller fan.
b Pull firmly on the bottom lip to remove the fan.
Figure 22. Removing and installing the controller fan
4 Install the new controller fan.
a Slide the new controller fan all the way into the slot.
b Press down on the lever and snap the lever into place.
5 The following figure shows the indicator lights on the controller fan.
Power indicator
Controller fan indicator
When the controller fan is operating properly, the green power indicator is on and the
amber indicator is off.
Figure 23. Controller fan indicator lights
Figure
22.
Chapter 3. Replacing controller unit components
41
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