Tropic Seas Circuit Board was used in all Tropic Seas Spas 2013 – 2015 MVS504SZ 33-0612-08CB
To convert this board to a 3 pump system you need the Daughter Board.
Pro Tip: Now would be a good time to replace the heater gaskets also and switch to the male plug’n’click (Heater Side)and female plug’n’click(Circuit Board Side) instead of the copper heater straps.
