it doesnt have a filter cycle. Its a wind river spa, some type of Hurricane controller, and the executive pump. Once I turn it on, the pump runs on low continously. The button will cycle it to high, then back to low, but low speed does not shut off when the heater shuts off as it used to. it has a switch for auto or timed as far as the pump is concerned i think. i always left it on auto which meant it would kick on low when the heater was on. Does that help? it seems that the controller is just not turning the pump off after the heater goes off like it should. but ive only replaced the pump, dont know how that could happen.