Hi all, I've just come accross a duff 3 Phase RCD during a PIR (fails to trip at 30mA when tested). The point is that this RCD and Consumer Board is obsolete and Wylex do not have a replacement that I can use. Has anyone else come accross this one before? and how did you get around it? The CU is in good nick and tests okay, so it seems a bit much to recommend replacing the whole thing. Also, just maybe one of you has one of these RCDs in your shed!