My 3iE/4iE thermostat reads “ER1 Out” on the display?
It indicates that the thermostat is not set up correctly. Click “Read More” for details.
Archives: questions
Does the 3iE have a battery backup?
In the event of a power outage, the capacitor will hold the charge for approx 1 hour, after which time the device will require re-programming.
Where do I connect the earth from the underfloor heating ?
The earth wire of the heater(s) must be directly connected to the earth wire of the supply.
Warmup Insulation Boards: Preparing for the Installation of Floor Heating
All surfaces should be thoroughly cleaned of all dirt and debris. When installing over an existing concrete base, it is important to remove all traces of existing finishes, contamination, etc. to allow for a clean surface.