First, thanks for the awesome product. I hope to get it up and working with the Adafruit usb wifi dongle before I head out for vacation this summer. One question – should there always be power sent to valves? My valve seems to be stuck in “on” mode no matter what I do. When I place my multimeter leads between COM and any of the valve station terminals, I am seeing between .67-.77 volts [EDIT – I think I read it wrong and it’s actually 26-27 v ac]. Is this normal? When I manually turn on a station, I see no difference in voltage.