Just installed this yesterday. The most I ever got out of the solenoid was that the LED changed color in accordance with the water temperature. The touch feature never once worked. Watched a handful of youtubes and googled a bunch, tried all trouble shooting methods (new batteries, etc) and still was not successful.

While solenoid was engaged the water would shut off after 10 or fewer seconds, and would not be able to be turned back on. I was relegated to removing the solenoid and just using it in 100% manual mode. I love the faucet even in manual mode, but paid extra for the Touch functionality that is completely broken.