00981795R03 – FZR20/25 LB, PL
Service
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Controller replacement
CAUTION
• Controller board is susceptible to electrostatic discharge.
Extreme care should be exercised by using a grounding
strap when handling and installing control board.
Fig. 82
1. Turn off power to unit and unplug.
2. Remove facade and disconnect electrical plugs.
3. Remove screw securing ground screw to refrigerator cabinet
(Fig. 82.1). Do not remove ground wire from facade.
4. Place facade face down on flat clean surface with bottom of facade
facing you, and remove four screws attaching back panel to facade.
5. Lift and rotate back panel toward you.
6. Take precautions for proper grounding to reduce risk of electrostatic
discharge (ESD) to the controller board.
7. Remove 5 screws securing board to facade (Fig. 82.2).
8. Reposition board away from mounting location and install new board.
9. Using wiring schematic (attached to inside of removed back panel) as
a guide, remove wires one at a time from back of existing controller
and connect to corresponding terminals on replacement controller.
10. If ribbon cable from the display is not connected, carefully connect to
corresponding location on board (Fig. 82.3).
11. Make sure wiring is secured at same factory locations, so that cover
will not pinch any wires when reinstalled.
12. Flip facade cover back into position on facade and reinstall 4 screws.
13. Place facade on top of refrigerator above compressor.
14. Reconnect electrical plugs and reinstall screw for grounding wire to
grounding location on cabinet.
15. Remount facade to bayonet mounts.
Reversing the door swing (requires a new door)
FZR20/25 units ship standard with a right hinged door. To change to a left
hinged configuration requires a new door.
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