Automatically clear/uncheck a check box when the “user role” of a user is change

I need to automatically clear/uncheck a check box field in any Buddypress profile when the “user role” of any user change (in this case from Author to Subscriber).

When the user role is changed, I was able to hide those checkboxes using the PlugIn “BuddyPress Conditional Field Groups”. The problem is that the search engine in my site still sees that the check-box field is still checked.

I’m not a programer, but I assume that the logic could go like this:

If User role = Subscriber (or goes from Author to Subscriber)
Then checkbox(Comunity College & State College).uncheck
End if

I was able to get this from the Inspect Element utility of my web browser:

<input checked=”checked” type=”checkbox” name=”field_23[]” id=”field_297_0″ value=”StateCollege”>

Thank you!