Comfort Touch | What does error E2 mean on the display of the Comfort Touch thermostat?

Error E2 indicates a floor temperature sensor fault. Check if the floor temperature sensor is properly connected to the thermostat.

If the temperature sensor is connected to the thermostat correctly and error E2 is still displayed, disconnect the sensor from the thermostat and measure its resistance. The correct sensor resistance is given in the table.

NTC 12K Ω@250 Celsijus
*Celsius * Farenheit ΩOmh
-10 14 63929
0 32 37942
10 50 23364
20 68 14871
30 86 9752