Maax Spa Circuit Board Chip Number: MX504SZR1A Also known as (107-961)
Control Box Number: 55257
Board Number: 55258
Notes regarding this board (54638-01) to replace the Maxx chip number above.
Original Maax circuit board price = $395.00 (special order). You will receive the alternate board 54638-01 (shown) it is a direct replacement without any issues and is much cheaper.
When installing this 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.
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