Already owner of the same device, I had to replace after a failure of the display (strong common failure on this unit). Without intervention (badly) Honney (you) well, I found the thermostat in an English seller. I thought I could adapt the language of the device, which is not the case. Otherwise, just need reclipser the device to the former support, reprogram a minimum and heating works again ... Limits: Daily programming only (think about it if you are working, for example!)