I recently replaced my SWG cell. The old cell was 5 years old and slowly stopped working which I think is expected. When I replaced the cell my salt was at 1100 PPM so I added 8 bags of salt (it's been awhile). Now it says I'm at 3300 PPM which should be fine but the "High Salt" error light comes on within a few minutes of operating the pump. I took the water to get tested and they said it was at 3200 PPM which is considered ideal (manual says 2700-3400). Is this most likely a defective cell? Is it the cell the measures PPM or something else? Any suggestions on other things to check are appreciated.