So, last week we started having an issue with our chlorinator where none of the lights were staying on. After doing research on here, we replaced the delimeter. The chlorinator worked for a day and then started reading low salt. We added salt to it and the next day it started reading PCB on the display screen. We researched again and found two suggestions. 1 - remove power source for one minute and then plug back in. This worked!! Unfortunately, it only worked for a day. 2 - recalibrate the default salt reading. We did this and it too worked, for a day. Now, every day the PCB error comes back. Does anyone have any other ideas?? We're about stumped. I can't find anything that talks about the error coming back daily.