Hey all,
I have a 2000 Maax Infinity Vesuvius spa that I got from a friend. When the spa is turned on and you press the Jet 1 button, the number 1 pump comes on at low speed, just like it's supposed to, but when the same button is pressed again, pump 1 turns off instead of going to high speed. Now the really weird part. When the Jet 2 button is pressed, pump 1 comes on at high speed, press it again and pump 1 turns off. I checked all of the wires from the pumps and they do go to the correct connections of the PCB. I have 2 top side control panels on the tub and they both do the same thing, so I don't think that the panels are the problem. I also swapped connections for pump1 and pump2 and pump 2 does the same thing when put in the pump 1 outlet.

Does this sound like a bad system board to you guys? They are easy enough to get, I just want to make sure I'm ordering the correct thing.

The system board is a Gecko MSPA-1-P122-P212-B2-O1-CP2

Any help would be greatly appreciated.

Thanks

Yes I'd replace the board.