I have an Aqua Logic control board that is 6 years old , the T- Cell is original to the pool so it is 10 years old. I have always maintained the t-cell according to Manuf. Cleaning Instructions .
problem is this : On start up the display will show 0000ppm then the message Chlorinator Off Test Salt Level , Check system very low salt.
Pool store tested salinity level and was determined to be 4100 and said SWG shuts down after salt reaches about 3800. The latest test yesterday 3-16-2016 determined Salt Level 3600 but displays reads the same as described above. I know my SWG works as I installed it on my neighbors system as we have the same equipment. Salt level on his pool 2800 before we installed my SWG and 2800 using my SWG.
Hmmm, Thoughts , maybe a board problem ?