Toward the end of last season my Jandy/Aquapure Unit started with error code 123. It was 5 years old then. After 2 cleanings of the salt cell with acid, still no free chlorine being produced so I began to use chlorine tabs. Finally ordered the new round PLC1400 from poolsupplyworld for $529 and had it installed last week. Still receiving the error code 123 and getting frustrated. Does that mean I have to replace a circuit board or the whole darn control panel? Called Jandy and they said to call them when I am at the control panel. Any suggestions? Pool looks and feels great even with the chlorine tabs, but still not what I paid for.