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Yes, on that board, putting the circ pump to an always on connection will give you the same issue as shorting/by-passing the flow switch with the power off actually.

Make sure tu jump it with the power On actually. Otherwise you are creating a "stuck closed" flow switch error. The flow switch can't be "closed" before the system is On. It will see that as an error. You need to have the power On and the circulation pump running before jumping the two pins of the flow switch connector on the board.

How did you jump the flow switch? And did you jump it with the hot tub breaker on or off?

The Arctic Spas tsc-80 is a custom shaped tsc-8. Make sure to set your jumpers for the tsc-8 keypad