Report "I have an intex purespa that has stopped heating due to no water flow (code 90). When i turn on the filter button, the unit turns off within seconds. I turned the filter on and pumped air through the inlet hose with an air pump, the unit stayed on. This leads me to believe the problem is with whatever motor filters the water through the system. Does anyone have any idea which part of the unit would house that? Pictures are appreciated!"