I recently had a new Mastertemp heater installed. In pool mode I’m able to turn heater on, set setpoint temp on ScreenLogic and all works fine. However, in spa mode, I can turn heater on but no matter what I set in ScreenLogic including turning heater off it continues to run until the default temp (104F) on the heater is reached. I have EasyTouch upgrade automation with heater setup using 2 wire. Is this working as expected and do I need the 3 wire setup to independently control the spa temp?