I currently have a Polaris Autoclear Plus. I know it's old but it came with the house. It worked perfect last year but for some reason this year it's not going so well. The problem is that it's set to run for 7:25, when it's first turned on it reads my salt level between 3700-3900 and all LEDs are lit up from red to green on the bar graph, but after it runs for 3-4 hours all the LEDs go down to one red one and then it gives me an error code 91.
I have taken water samples to the pool store and they tell me that my water has 0 chlorine in it. I have adjusted to the correct water temp (70), cleaned the cell.
I also put the amount of salt in that the table in the manual suggested. I have been told that a SWG cannot bring the chlorine level up from 0, that you have to shock the pool again, or add liquid chlorine.
Any help would be greatly appreciated, because it's not in my budget right now to buy a new SWG.