Quick Menu Troubleshooting Why is my thermostat flashing? How do I test my thermostats GFCI? Why does my thermostat say test monthly? What can I do if my old thermostat has stopped working? Why is my thermostat stuck on the Warmup screen? ER1 on the Thermostat Meaning What Does the Control Fault Error Message Mean? What does it mean if my thermostat reads “output fault detected” on the display? What is causing my thermostat to keep tripping requiring that I press the reset button? What does it mean if my thermostat reads “ER 1 Out” on the display? What does “ER1” on the thermostat display mean? Thermostat Reads Error Message “ER2” on the Display? Ground Fault Error: What does this Mean if my Thermostat has “Ground Fault Error” on the Display? What if my thermostat screen is black and won’t turn on? My Floor has No Heat but There Are No Error Messages? Why does my thermostat trip every time it reaches the same temperature? What if my thermostat says system is on however the floor is not heating up? What if the Sensor Probe Reads Higher or Lower than Actual Temperature? Why is my Floor Temperature Reading Incorrect? “ER1 Out” Thermostat Reading on the Display Un-Mounting Your Thermostat Output Fault Detected on the Display Heater Error: What Does it Mean if my Thermostat Reads “Heater Error” on the Display? Is it Normal if my Thermostat Makes a Clicking Noise? Wiring How far away from the thermostat can the relay be mounted? Can multiple relays be used? Do you have to wire the floor sensor probe that comes with the 3iE thermostat? How to wire the 3iE Energy-Monitoring Floor Heating Thermostat What if my thermostat screen is black and won’t turn on? Can I Have Another Thermostat as an Acting Relay? Installation Can you trim the floor sensor? Conduit Requirements when Installing a Warmup System Where do I place the sensor probe when installing the DCM-PRO cables? Mounting the 3iE Energy Monitoring Floor Heating Thermostat How do turn on my thermostat unit? Master/Relay (relay reading ER1) Can my sensor probe be extended? Can I Have Another Thermostat as an Acting Relay? Programming How do Warmup thermostats work? Can I turn my thermostat above 86°F? Why can’t I program my thermostat to read air temperature? 3iE Adjusting the time 3iE Making Temporary Temperature Adjustments 3iE Basic temperature programming/Setting each day separately Preparing for your project Conduit Requirements when Installing a Warmup System Miscellaneous questions Programming the Floor Temperature Initial Set up of the 3iE Energy Monitoring Floor Heating Thermostat How can I turn my system on or off completely? Why is my Floor not Reaching Target Temperature? Why does my thermostat trip every time it reaches the same temperature? When my screen goes dark, will my floor continue to heat? When I push the test monthly button on my thermostat, the screen goes red and tells me to call Warmup. Should I be worried? Does the 3iE have a battery backup? Why is my thermostat flashing? If your 3iE screen is displaying in flashing please contact us so that we can solve your issue with you on a case-by-case basis.