I bought three of these devices in November-2013. Two hereof exhibit now on deficiencies and are no longer to use.
In unit 1 probably the motor is defective, since the permanent message "E3" is shown. The instructions give this ago only that the smooth running of the heater pin checked or dirt to be removed.
Both were made, in other radiator thermostat - which can be operated with the third functional unit - tested. Again, malfunction ...
Unit 2 refuses to work when trying to program the thermostat using the rotary control. It turns off the display and the thermostat restarts. Over and over again as soon as the wheel is actuated. About all the other buttons on the thermostat is turned on. But programming is thus not possible. The batteries were exchanged and installed correctly.
--- After one year of use, the DST even factored less, this can not be.
The support has so far not excited despite request. Let's see ... for this performance to date only one star.
The described problem coincides with the problems that are described in various forums. I can only advise against the purchase.
