Coast Spa Circuit Board
Chip Number CS504SZER1(x)
Box Number 55636 / 55637
NOTE: THE CIRCUIT BOARD THAT WILL BE SENT IS 54638-01. IT IS A DIRECT DROP IN WITHOUT ANY ISSUES OR MODIFICATIONS. THE ORIGINAL COAST BOARD IS $395.00.
MOVE ALL THE WHITE WIRES TO MATCH THE ORIGINAL BOARD. DO NOT MOVE ANY OTHER WIRES INCLUDING THE BLACK ONES.
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****).