I thought it was another success story. My thermistor was cracked and there was a burn spot around the base of one prong. I soldered in a new one from digikey and the indicator lights returned to normal - yay! But there is no chlorine apparently. Pool became green, pool test strip says no chlorine, pool store says no chlorine, I don't get it This is a 9 year old Aquarite circuit board, 2 year old cell.