Jacuzzi Z Builder Series Mechanics And Repair page 25

Reverse to install.
Z112
Unplug the phone type jack from the topside. Unplug the sensors. Note which of
the incoming power cord terminals attach to the board. Loosen the screws that
hold the incoming cord.
The hardest thing about the replacing the board is its in a small space. It has 1-2
screws holding the board to the box and 2 nylon posts. Remove the screw(s) and
compress the nylon posts and the board will release from the box.
Swing the board out and to the left. Install the new board. Move the wires one at a
time.