I have the KIT-RSRTDN (EU settings) that I installed on my Silvia back in 2008, and it's been working daily ever since without any issues. Recently, however, I noticed some strange behavior. When I turn the machine on with the main switch, the controller display remains dark (the light in the main switch goes on). Only after a while (usually about 5-10 minutes) the display on the controller turns on and the temperature shows up. After that it works as usual. Sometimes (rarely) it stays off, then flicking the brew switch on and off once or twice helps to get things going. I haven't made proper scientific observations, but this delay seems to be worse on cold mornings. I don't think, however, that it's purely temperature related - when I turn the warm machine off, and then turn it on after a minute or so, there is still this delay, only maybe shorter. I checked the wiring inside, but nothing seems obviously wrong. The machine is still usable, but I'm concerned that it might be a signal of an oncoming more serious failure.