ryanbt

I have a 6 year old 20,000 gallon pool with the Jandy AquaPure 1400 system. Last year the salt cell failed and I had the 2 port one replaced with a 3 port cell. In August of last year the sensor failed and I replaced that as well. About two weeks ago, the system was throwing codes 172, 180 and 181 and also displaying 25500PPM on the main display. This past weekend I did my big spring pool pump cleaning and also cleaned the cell and the sensor. After I put it all back together it is only throwing one code, 144 for low salinty. I checked the salinty manually and it is fine. I did some online research and also tested the front board of the AquaPure wall unit. All tests of the front board were off by one number (which I read somewhere was OK). Does anyone know if the problem is my sensor, or is the front board the problem? Thanks in advance for your help!