thanks dave ,there is an auxilaty pad wich controls lites and water fall,that seems to work fine,would you think the transformer would have anything to do with the control pad,like I say it is lit,the change filter icon is on and when the heat is on the heat icon is also on,i see the transformer does send something to the pad itself,but it is lit so im assuming the voltage to the pad is correct???,is it possible a flow sensor could be the culprit(just thinking out of the box) thanks for your input