Controller Replacement - Follett FZR4P Installation, Operation And Service Manual

Controller Replacement

1. Open the door and prop the door open, so it doesn't close. For
KP units, enter default code of 1 2 3 4 5 6.
2. Turn power switch to the OFF position and unplug the unit from
the power supply.
3. Remove the four screws (Fig. 40.1) on the kick panel at the
bottom of the unit.
4. Remove the kick panel. Some units may have a reed switch
installed in the kick panel. For these units, disconnect the reed
switch harness from the control board harness.
5. The control module is located to the left of the condenser coil.
The module is attached to the underside of the cabinet.
6. Remove the thumb nut securing the front of the control module
to the cabinet.
7. Pull control module forward 1 inch, rotate left as per Fig. 42, and
continue to pull the control module forward. Place the module
on the ground in front of the unit.
8. Keep all wires connected to the original board. Locate and 8
standoffs keeping the control board elevated from the control
module mounting plate.
9. Using a needle-nose pliers, one at a time pinch the standoff
tab inward and gently pull up on the control board. Repeat this
process for all 8 standoffs until the board is free.
10. Install the new control board on the control module mounting
plate.
11. Remove 1 wire at a time from the original board and transfer
them to the same terminal on the new control board.
12. Turn power ON and confirm operation of unit, including KP/E
lock if applicable.
13. Reinstall the control board module.
14. If applicable, reconnect the reed switch harness to the control
board harness.
15. Resinstall the front panel.
16. Close the door.
30 FZR4P, FZR5P and FZR5PLP-T Undercounter Freezers
Fig. 40
3
2
1
Fig. 41
2
1
Fig. 42
2
1