We've got a reward too, and have had the handle replaced on the zones....when you looked down the (excuse my ignorance of tech terms here) the hole that the zone changer thingy came from, there was little burrs of plastic on the inside. This apparently had caused the diverter to become siezed, so that when I went to move it, I snapped the handle off. (I was .. um 'inebriated, i think the word is, at the time!!)