My IC40 seems to be reading salt level at least 600 ppm low. The low salt light was red so it was not producing chlorine. I added salt to the pool because the reading I got was 2150. After 48 hours and 60 pounds of salt, I didn't get much of a change so I inspected the cell and it had a tiny bit of residue on the end of one of the plates. I cleaned it with and acid wash and it bubbled only for a few seconds. I waited a few more and removed the acid. That was yesterday. Today I rinsed the plates with a hose. However, it is reading 2900 ppm. My Hayward analyzer is reading 3500 ppm. The local pool store got a reading of 4250 ppm. I have ordered some of the overpriced calibration solution to recalibrate my salt analyzer.
The low salt is green now (OK) but I think the salt reading is way low.
The IC40 manual shows that it is supposed to be self-cleaning. There are levels of 2, 3, 4, and 5 hours for self-cleaning. It was on 2 and I set it to 5 hours temporarily to see if that fixes the problem. I am not sure over what period of time the cleaning takes place (e.g. 5 hours cleaning per xx hour cycle.)
Has anyone experienced this problem or have any suggestions.