Cal Spas Circuit Board
Chip Number: C2100R1A thru C2100R1E. This board also replaces chip CS5000 (52704) PN: ELE09100205 Balboa numbers: 52299/52199
New replacement board has closed relays as shown, old style is also shown for reference. New style hooks the same as original - Note: Just to the right of the glass fuse running vertically is the jumper to set the lighting to 12 volts (for a single light) or 120 volts (for fiber optic lighting)
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****).
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