Home / Wiring / 4iE Smart WiFi Thermostat

My 3iE/4iE thermostat reads “ER1 Out” on the display?

An electrician may be required to check the floor sensor has been connected to the thermostat correctly. See our troublehsooting guide for more information:

Further Questions?

Programming

- How do I add a period on the Warmup 4iE Smart WiFi Thermostat?

- How do I set a programme on the Warmup 4iE Smart WiFi Thermostat?

- How do I delete a period on the Warmup 4iE Smart WiFi Thermostat?

- How do I change the background theme to clock on the Warmup 4iE® Smart WiFi Thermostat?

- How do I change a period on the Warmup 4iE Smart WiFi Thermostat?

- How do I cancel an override on the Warmup 4iE Smart WiFi Thermostat?

- Why can’t I program my 4iE to read air temperature?

- How do I connect the 4iE® to your WiFi?

- Where do I find my 4iE’s Device Number?

- When Should I Select? Air vs. Floor when Programming my thermostat?

- How can I change from Celsius to Fahrenheit on my thermostat?

App / Portal

- How do I add Traffic alerts to my 4ie?

- How do I add or change the energy costs on the 4iE?

- Does the Myheating App have Data Protection?

- How Do I Enable to SmartGeo on the MyHeating App?

- How do you add a Room using the MyHeating App

- How do I upload my own background to my 4iE?

Troubleshooting

- The 4iE wont let me set above a certain temperature ?

- Why is my 4iE coming on during off times?

- Why is my 4iE Screen blank ?

- The air temperature on my 4iE is not right

- 4iE cannot find my SSID WiFi name

- Does the 4iE have a battery backup?

- Why won’t my background picture upload on my 4iE?

- Why does my 4iE thermostat read a percentage?

- Why is my 4iE connected to Internet But Showing an ‘!’ on the Screen?

- Why Won’t My 4iE Connect to the Internet?

- What does it mean if my 3iE thermostat reads “overload” on this display?

- What does “ER1” on the thermostat display mean?

- My thermostat reads error message “ER2” on the display?