Question: I have this controller, but notice that if I switch to manually water, it will show M1 or M2 on the screen, but it doesn't turn the water on. Any suggestions on where to look? I just installed a new valve in # 2, but still no water coming out when I switch to manual water. It's like the box isn't sending the signal to the valves. The water comes out when I manually turn on the valve. Thank you.
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