During system discovery, the thermostat displays a message Thermo- stat is unable to communicate to system components. It has been extremely efficient but has suffered from an intermittent problem since it was installed. We just switched from the 'Summer' program and started using the 'Winter' program. ©2015 Lennox Industries Inc. Dallas, Texas, USA iComfort Wi-Fi® Web and Mobile Apps iComfort Wi-Fi® Thermostat THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE NOTICE Use this thermostat only as described in this manual. If your furnace won’t come on or is not putting out heat, simply check that the thermostat is on and set to the correct setting. 0 I had a new Lennox system installed in August 2017. It includes an XC21 Air Conditioner, CBX32MV Variable Speed Air Handler and a IComfort Wifi Thermostat. 14 (Stat) The thermostat found more than one thermostat, more than one indoor unit, or more than one outdoor unit on the system. The furnace is overheating: All furnaces contain a safety mechanism called a high-limit temperature sensor. The furnace is in idle mode and I can start winter mode by using the app. We are still within our 1st year with the iComfort and largely have been pleased. Lennox ComfortSense™ 7000). If your ecobee thermostat is frequently rebooting, your HVAC system may be cutting power the thermostat. Lennox Furnace Troubleshooting Check the Thermostat. 4 tons. Installation should only be performed by an authorized Lennox dealer. Replace indoor unit control board if there is no response. The issue is that when the thermostat calls for cold air when the temperature in the house exceeds the set temperature. It seems random as it may change a couple times during the same day or maybe we'll go a few days with no issue. When the thermostat setting is set too low, it will cause your furnace not to put out heat. Thermostat did not find an Indoor Unit. Lennox really needs to fix this, whether it is an icomfort thermostat hardware/software issue or I need to change my network configuration with setup information provided by Lennox. Check R, i+, i- and C connections, ohm wires and cycle power. Page 1 HOMEOWNER'S MANUAL ® iComfort Wi-Fi Thermostat ©2014 Lennox Industries Inc. Dallas, Texas, USA Touch-Screen Programmable Communicating Thermostat CONTROLS ® iComfort Wi-Fi Web and Mobile 507342-01 Apps 2/2014 Supersedes 507200-01 General ® Congratulations on choosing the iComfort Wi-Fi touch-screen, programmable thermostat! The icomfort Wi−Fi thermostat can connect to the internet using your home’s wireless Wi−Fi access point. The thermostat is blank and unresponsive. When Lennox furnace troubleshooting, first thing’s first. Replace the icomfort thermostat with a conventional thermostat that has a dual fuel control mode (e.g. When it came back on, my Lennox iComfort touchscreen thermostat did not reboot. While the iComfort ® S30 is designed for use with Lennox iComfort ® enabled equipment, the iComfort ® S30 can be used with the Equipment Interface Module (EIM) to work with almost any … Make sure there is an icomfort indoor unit on the system. To find the dealer nearest you, call 1-800-9Lennox or visit the Lennox Dealer Locator. In Challenging Situations, THERE’S ALWAYS A WAY TO … Show all. After online registration is completed, weather information is automatically sent to the thermostat, and you will have full access to the thermostat from anywhere using a remote internet connection via computer, smartphone, or iPad. However, about 3-4 times a week the thermostat keeps changing itself back to 'Summer'. The state-of-the-art technology built into … With that said, since the May 22, 2013 “connection outage resolved” notice from Lennox, I have had a rock-solid WiFi connection. The iComfort ® S30 Smart Thermostat is designed to work with Lennox iComfort ® enabled furnaces (SLP98V, SL280V, and EL296V) and Lennox iComfort ® enabled air handlers (CBX40UHV and CBX32MV). The most common causes of your HVAC system cutting power to your thermostat are: 1. My Lennox iComfort thermostat screen has gone blank.