Cal Spas Circuit Board
Chip Number: CS6000R1A / CS5100DVR1B both chip numbers use the same circuit board
Balboa Water Group Number: 55737-01 / 55737-02
Control Box Number: 53986-01 / 55736-01
There is an alternate cheaper board that can be used (Click Here), when using it follow the instruction below.
When installing the alternate board:
Make sure that you move all the white wires on the new board in the same location as the old board.
Do not add any wires to the board or move any other wires
Make sure all Dip Switches are down
It is very important that you do not order a circuit board based on looks, several boards look alike but have different software or chips. It is the chip that drives the board and gives it its unique functions. To correctly identify a circuit board the chip number should be used to identify it. It can be found on a white sticker near the center of the circuit board. Another number that is helpful in identifying a Balboa Water Group circuit board is the five digit number found on most boards (5****).