Larry, I have found that the valves can seem comatose, but in fact are just stuck. If you can, see if you can loosen the 4 mounting screws just a half turn or so to see if this frees up the valve. They also are protected by a 5a fast blow fuse, the glass type, you'll find the fuseholder behind the wet bay panel if yours are similar to mine. Ive had the distinct pleasure of replacing three valves, and, in fact, only one was 'bad', the others, temperamental.