I have a Watkins Model G Grandee hot tub. When I push the button to start either of the pumps I hear the relay click but neither pump will start, also when I turn the thermostat from the lowest setting up I hear the relay click but the heater does not come on. The recirculating pump for the heater is running and the light will in the hot tub comes on, however nothing else is working. I'm thinking the interlock circuit board has gone bad. The board is discontinued and I cannot find one. Is there a way to upgrade this circuit board or the control box to one that is available? Or does anyone have any idea what else might be causing the problem. I have proper voltage going into the hot tub.
Thanks
Brandon
