I finally got back to working on the prev. discussed wiring issue on this 3G AV Marzocco. After frustration and checking and rechecking I found that two of the three NEW keypads I had installed were actually bad. I replaced the two again and almost all the problems were corrected. Programs held, groups consistant with eachother...but still the hot water switch engaged the middle group valve. Tried a few things and ended up wiring it straight to the valve and skipping over the brain connection. Works for me!
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