Hi i have a 1996 dimension 1 diplomat with 2 pumps they both seem to work fine there is plenty of pressure to all the jets however there is no water going through the second filter and through the heater line which is causing a flo1 error. The flow switch works there is just no water being pumped through the heater doese anyone know if there is a seperate circ pump on this model and where it would be or any other suggestions would be great.

I have also cleaned the filters and removed them still no flow through the heater pipes the only way to get flow is to put a hose in the filter area which leads me to believe that this is seperate from the rest of the jets and works on its own pump.Again both pumps work and there is plenty of flow through both sets of jets, each pump works one half of the spa.