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What type of thinset should I use with my Warmup system?


We highly recommend the use of polymer-modified adhesives, also known as “modified thinset.” Since the addition of the polymer compound creates a more dense bonding reaction during the curing process, this ultimately improves heat distribution. Acceptable tile adhesives include modified polymer self-leveler or thinset.

Do I choose cable or mat electric floor heating systems?


This page explains the difference of the mat and loose cable options but ultimately either the cable or mat option will give you the design freedom you are looking for.

What do each of the COMMBOX DIP Switches Mean?


Click “Read More” for further information. 

How do I upload a custom background to my 4iE?


The 4iE® is offered in White & Black. It is designed to look great in both modern and traditionally styled homes, with glass effect front faces and beveled chrome edges to reflect wall colors.The large color touchscreen can be customized with different themes and custom up-loadable photo backgrounds* to complement your wallpaper. There’s even a 7-day local weather forecast built in*. (*WiFi version only)

3iE Making Temporary Temperature Adjustments


Your 3IE allows the ability to temporarily change the floor temperature setting for a specific period of time. You will first need to “wake” your thermostat by touching the checkmark on the front screen. Notice that above the up and down arrows you see “override.” Touch either arrow to begin adjusting the target temperature that currently appears.

3iE Basic temperature programming/Setting each day separately


The picture below shows the screen you will see if you are in the “Program Schedule” screen. If you had selected the option of “View/Edit” a program, you would have to start in that particular menu to eventually reach menu now being referenced.

3iE Adjusting the time


If for some reason you need to change the time, do the following. Touch check under “wake.” Now the word “menu” will appear above the check. Touch it to begin. Next, touch the dash next to “settings.” Then, touch dash next to “time.” Touch dash next to “set time.” You will now be on the […]

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.

What Does the HI/LO Error message mean on my COMMBOX?


The HI/LO error message means that the ambient sensor readings (on snow sensor) are out of reliable measuring range. Click “Read More” for details.

What does COMMBOX error code “SensErr 2” mean?


Error 2 “SensErr 2” will appear when the upper limit sensor is not connected or has short-circuited. Click “Read More” for details. 

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