I just picked up this used tub at the aution and have temperarly set it up in my garage to see if it works. I don't have a ground fault switch in it yet just hooked directly to 220. When i flip the panel switch the user input interface on the tut lights up and displays 100 then flashes 61 and then goes to Pr. When i hit the jet button the led below it lights up, still displays Pr and you can something from the control box click but nothing turns on. When i click some random buttons i have also seen a Ec code. If i hook the pump directly up to 220 it works but there is a click in it and its not very powerfull. The auction said the previous owner said there was something wrong with the heater and sensor but i don't want to go out and buy a new heating unit if i don't need it and it doesn't seem that a heater would prevent the pump from working. I did notice that the connector to the heater seems a little corroded and there is a little sizzle to it after i click the jet button. The tub has all balboa parts, controller is a balboa 500