It is not difficult to swap out a board.
As to Slusser's comment about variable brining--it is not a feature on recent versions of the Fleck 7000 and my recollection is you have an SXT version which never had the variable brining feature.
The problem should be covered under warranty and you should get warranty service from the company you purchased from.
Additional information:
If you have an older version of the electronics (not the SXT) you can check to see if variable brining is set. It is a setting in the master programming. Here is a link to the guide:
http://www.pentairwatertreatment.com...ng%2041079.pdf
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