Our pool was installed about a year and half ago and I acid cleaned the IC40 for the first time a few days ago. I'd never done this before, but after watching a few You Tube videos I decided to give it a try. I turned off the breakers on the Easy Touch panel and disconnected the cable from the IC40 before I took the IC40 off. After I reinstalled the IC40, reconnected the cable and turned the breakers back on the EZ Touch panel shows the salt level is 0. I had a hard time getting the 4 pin connector from the IC40 lined up with the socket on the EZ Touch and I'm wondering if I got it on there wrong the first time. When I saw the 0 salt reading I turned the main breaker in the power panel off and removed and reconnected the cable and I'm 95% sure it's on right now. Could something have been damaged if I had the cable connected wrong at first that would cause the 0 salt reading?