What you can try is to change the connectors on this board, in order to see
if the problem isn't located somewhere else.
One of reasons why this can happen, is that you have short circuiting between
the plates. This can damage your high voltage devices very easily.
In order to fix the problem you probably need a whole new board, which is
only available at B.D..
I advise you to take off the high voltage unit that is still functioning,
because in future time it can save you a lot of money!!
goodluck
Eric Noteboom
NKI/the Netherlands