Picture

What does COMMBOX error code “SensErr 1” mean?


Error 1 “SensErr 1” will appear when there is a communication error with one (or more) snow sensors. Click “Read More” for details. 

Was your electric floor heating system installed directly on a concrete slab?


Without a thermal break, the concrete acts as a heat sink. Therefore, the heat is drawn first into the concrete sub-floor before your floor covering. This is why Warmup recommends installing Warmup Insulation Boards over the concrete sub-floor to act as a thermal break. This forces the heat radiate upwards first rather than down into the concrete slab. Warmup insulation boards can increase ramp up time by over 70% and decrease heat loss by over 90%.

Un-Mounting Your Thermostat


Please click “Read More” for instructions on how to un-mount your thermostat

Can I cut my floor heating mat if it’s too large?


Instead, try pulling the cable off the mesh and spacing the cable every 2 or 2.5 inches apart. Consult your installation manual with further questions regarding where the cable or mat can be run.

Programming your COMMBOX-600


The COMMBOX-600 is a “Plug and Play” controlled power distribution panel for frost protection, ice and snow melting projects. When receiving a signal from the sensor(s)m the contactors are activated, energizing your heating system. DIP switch settings determine how the zones activate. When programming your system, make sure DIP switch 1 is in the ON position. The program manual can be navigated by using the SELECT (+) to move forward or SELECT (-) to go back through settings.

Floor Probe Installation Instructions


The thermostats come with a 9’ sensor cable to detect the temperature under the floor finish. The end of the probe wire contains a capped sensor that should be evenly centered between two heating cables at least 12” into the heated area. At no time should the probe wire cross the heating cable.

Why does my heater have a ground wire but the thermostat has no terminal for ground?


The ground wire of the heater(s) must be directly connected to the ground wire of the supply.

What if my 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.

What gauge wire should be used for the SIT-6E?


12 AWG or 18 AWG should be used depending on the distance from the controller. Click “Read More” for details. 

What gauge wire should be used for the GIT-1?


12 AWG or 18 AWG depending on the distance from the controller. Click “Read More” for details.

Scroll to Top