A few issues may lie behind the fearful “Blank Screen of Doom.” Some are easy to solve; others will take the knowledge and training of a professional HVAC technician. Here are my observations: One-touch Away – This is the most-used feature of the thermostat. We use it daily, touching the button before leaving on errands (set to 80 degrees). Flipped air handler breaker off then on and after a few minutes the thermostat screen lit up and A/C turned on. Short (jumper) across terminals on the gas valve or at the system controls to test installation. A beautiful display of innovation and simplicity HD Video Screen Savers automatically change to reflect current outdoor weather conditions. SETTINGS The setting screen will allow the homeowner to connect to their home Wi-Fi router, WI-FI give the system a name, smart away and feels like features. The THE BATTERIES ARE DEAD. This iComfort® S30 is an electronic communicating, color display touchscreen and 7-day programmable interface which communicates directly with a Smart Hub. Try changing the batteries. Allergen Defender is working - When Internet weather is enabled and pollen count is high in the home's location, the fan will run between heating or cooling systems to help clean the air. my lennox icomfort thermostat screen has gone blank. Upload your own photo backdrop to the iComfort screen using your smartphone and the iComfort App. This will damage the iComfort® S30 and void the warranty. Install HD Display/Mag-Mount on outside walls or in direct sunlight. Available with iComfort S30 and E30 thermostats. Tried cycling breaker again. 1.0 out of 5 stars IComfort S30 not worth the price Reviewed in the United States on July 2, 2019 I was told that my Lennox XC21, 2 stage condensing unit, installed with a Lennox SL280 (2 stage, variable speed) furnace, would not start in 1st stage if I didn't use this thermostat. Another few minutes later thermostat went blank again and no A/C again. If your wireless connection appears to be working properly, but you iComfort wifi system is not recognizing it, please contact your dealer. A tripped circuit breaker that affects the thermostat may have tripped and cut off power. Some thermostats, including the most popular Honeywell thermostats, will dim the screen at a certain time (typically very early morning) to avoid burn-in. No joy. If your wireless connection is not functioning at all, contact your internet service provider. The iComfort S30 ultra smart thermostat outperforms the rest by monitoring system operation in real time, with ventilation control the dealer gets alerted when it’s time for a filter change or repair, making sure the system always performs at its best and eliminating the need for a … 04-02-2020, 02:16 PM #2. Diagnosing a blank thermostat screen. My family and I have used the Lennox icomfort thermostat () with our Lennox XC21 air conditioner for the past 12 months, both installed new.We love the system. Page 8: Home Info If this tstat can be reconnected and work again, will all my settings persist? Wait and see if the screen brightens again. Contact 1-800-9Lennox for assistance. DO NOT Install on voltages higher than 30VAC. Removed and reinstalled thermostat a few times. In the event the tstat needs to be replaced, are all the settings saved or would they need to be reconfigured? Install Smart Hub to indoor unit or equipment that could induce unit Still need help? A/C is not running. Some thermostats require battery power, and if the battery dies, your screen will go blank. Select the fan icon located in the upper right-hand of the screen. Thanks so much!! This feature can be turned on under modes / schedules on the home screen. Fan, heat & cool settings, humidity settings, notifications setup, general, display, home info and This is for connecting the S30 Control System to the home wireless network.