When I got my house refurbished, I got a new thermostatic shower installed. It worked perfectly until recently. For last couple of months, in the morning I'll turn it on and it'll take anything between 2 minutes to 30 minutes before water would come out with a normal pressure. We leave the hot/cold controller to one set place. But if I turn the hot/cold controller knob to cold then water would come out straighaway and if I turn the knob back towards hot side the water would stop.
Could someone tell me what could it be?
Could someone tell me what could it be?