Solve Water Temp Problem: This for hot tub temperature sensor is essential for fixing error display issues, such as OH, or ICE on your for Sundance spa for hot tub. Temp Sensor Use for Hot Tub -- 2007+ J-270, J-280, J-355, J-365 and J-375 Models, 2005+ J-210, J-220 and J-230, J-200 LED Models, 2005-2007 J-325 Models, 2004+ J-335, J-345 Models, 2003-2005 Del Sol Models, 2002-2003 J-320, J-330, J-340 Models, 2002+ J-300.