WTH Thermostat - Error Code A2.2
The underfloor heating and cooling system of my apartment is managed by a WTH thermostat. Last week had temperatures of 30+ °C, which is why I wanted to switch from heating to cooling the floor of my apartment. Somehow the instructions in the manual didn’t work for me and ended up with error code A2.2. Of course - an error code that’s not described in the manual. Below is an image of the WTH D9380 rF-t thermostat I have. ...