Welcome to the Forum Nigel ? The Diavel section of the Forum is a bit like an STD clinic, only those that really must go there go there. Try posting your issue in the Technical Help section you’ll probably get a quicker response.
Yeah, I saw that (can't help unfortunately) but my point is hardly anyone is watching that section, you're better off in the Technical Help section, it's watched by a lot more with a lot more technical knowledge.
Hi Had a little search, if the problem returns each time it get's wet then a thorough "moisture" investigation will definitely cure it, applying dielectric grease to connectors and possibly items might help or cure - if the problem goes away when dried out and then behaves normally then it's possible a replacement won't be any better at combating wet/moisture.