I have just purchased a "new build" flat with an ensuite Trevi CTV shower
If I turn it on it will allow me to adjust the temperature of the water up and down, but if I turn the heat up to max it seems to "stick" on max heat so that I cannot then turn it down to cold again. Once the shower has been turned off for an hour or so so that it all cools down again it seems to allow the temperature to be controlled up and down unless I turn the temp right up which makes it "stick" again. I need to report this to the developer first thing monday, but is this likely a problem just with the valve, as I was worried it could be something to do with the hot & cold water supply and for them to say that they have to start lifting the floorboards or something, especially as I'm having the all the floors (hardwood & linoleum tile) laid in the next couple of weeks! The other identical shower in the main bathroom works fine, so I'm hoping it could just be a valve rather than supply problem.