Troubleshooting

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


Ensure you have created your account and registered the thermostat using the Device Number. Click “Read More” for details. 

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


Check you are using a WPA2 password format (less than 10 characters) on your network. Click “Read More” for details.

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


The overload message will occur if more than 15 AMPS has been connected to the thermostat. Click “Read More” for details.

What does “ER1” on the thermostat display mean?


The ER1 message will also occur if no floor sensor is connected to the thermostat. Have your electrician make sure that the sensor probe wires are securely connected in ports 1 and 2 of the thermostat. If sensor was not installed, your thermostat can be programmed to read the air temperature instead by following the steps below.

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


The ER2 message will occur if the floor sensor has a short circuit or has a loose connection. Click “read More” for details.

What if my Warmup thermostat screen is black and won’t turn on?


If your thermostat has no display and will not turn on when power button is pushed, the thermostat could be wired incorrectly. Click here for more details.

Why is my floor not reaching the temperature set?


If your heating system was installed on a concrete slab or over an unheated space and insulation boards were not used, it is possible that the heat loss into the subfloor will cause your floors to heat up more slowly and possibly not reach the target temperature. Click “Read More” for details.

Why is my floor not heating but there are no error messages?


If your floor is not heating, you should contact your electrician to do proper troubleshooting. Click “Read More” for details. 

Why does my thermostat trip when I switch on my Underfloor heating ?


The thermostat tripping at the same temperature point could indicate that your system was cut during the time of installation. Click “Read More” for details.

My thermostat says system is on but the floor is not heating up?


If you installed your thermostat over 3 years ago and it seems to be functioning the same, however your floor is no longer heating up, call your electrician. Click “Read More” for details.

Find Out More

We’re happy to answer all your questions about Warmup’s wide range of underfloor heating systems and thermostats.

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Warmup offers an extensive range of electric and water floor systems compatible with all floor types, rooms and projects.

Electric Systems

  • ✓ Ideal for zones less than 25m²
  • ✓ Ideal for single rooms
  • ✓ Does not alter floor levels
  • ✓ Great for renovations

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Water Systems

  • ✓ Ideal for larger zones over 25m²
  • ✓ Rapid auto heat loss calculations
  • ✓ Compatible with existing central heating systems
  • ✓ Great for new-builds

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Projects Division Consultation

  • ✓ Bespoke heating solutions for new-build projects and larger renovations
  • ✓ Dedicated team to work with you
  • ✓ World-class expertise in R&D, building regulations and energy performance
  • ✓ Detailed system layouts for each stage of the project

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