To Next PageTo Next PageWhat to do if my Lennox icomfort Touch shows 'Over Temperature Protection'?
If your Lennox Thermostat displays an 'Over Temperature Protection' message, it means the indoor temperature rose above 99ºF during heating or cooling. First, check if the heating equipment is stuck ON. Next, verify the accuracy of the thermostat temperature sensor. Finally, switch to cooling mode to lower the indoor temperature.
How to fix a 'Low AC Line Voltage' error on my Lennox Furnace?
If your Lennox Furnace indicates 'Low AC Line Voltage', it means the voltage is lower than the nameplate rating. You should check the power line voltage and correct it. The alarm will clear 5 seconds after the fault is resolved.
What to do if my Lennox icomfort Touch has 'Lost Communication' with a unit?
If your Lennox Thermostat displays 'Lost Communication', it means the indicated unit hasn't communicated with the thermostat for over 3 minutes. Check the connections and ohm the wires. If the problem continues, cycle the power. The fault should clear once communication is restored.
How to troubleshoot a 'High AC Line Voltage' error on a Lennox Furnace?
If your Lennox Furnace displays 'High AC Line Voltage', it means the voltage is higher than the nameplate rating. You need to ensure the power voltage is within the proper range. The system will resume normal operation 5 seconds after the fault is corrected.
Why is my Lennox icomfort Touch showing 'Incorrect Operation' of a unit?
If your Lennox Thermostat shows 'Incorrect Operation', it means the indicated unit didn't follow the thermostat's command. Check the wiring connections and then cycle the power to resolve this issue.
What does 'Low Secondary (24VAC) Voltage' mean on my Lennox Furnace/Air Handler?
If your Lennox Furnace/Air Handler is showing a 'Low Secondary (24VAC) Voltage' error, it means the 24-volt power is low (within the range of 18 to 30 volts). Check and correct the voltage. Also, inspect for any additional power-robbing equipment connected to the system. You might need to install a larger VA transformer in the furnace/air handler. The error will clear after the fault is resolved.
Why does my Lennox icomfort Touch say 'Low Temperature Protection'?
If your Lennox Thermostat displays 'Low Temperature Protection', it means the indoor temperature has fallen below 40ºF. Check to ensure that the cooling equipment is not stuck ON. Also, verify the accuracy of the thermostat temperature sensor. Try to heat the space to above 40ºF.
What to do if my Lennox Furnace shows 'Earth Ground Not Detected'?
If your Lennox Furnace displays 'Earth Ground Not Detected', it means that the system shuts down. You should provide a proper earth ground. The system will resume normal operation 5 seconds after the fault is recovered.
Why does my Lennox icomfort Touch say 'Must Program Unit Capacity'?
If your Lennox Thermostat displays 'Must Program Unit Capacity', it means the indicated unit is missing the programmed unit capacity. Go to the indicated unit and program the unit capacity manually. Consult the unit IOM for programming instructions. Remove power to the thermostat before programming the control board. After programming, reconnect the thermostat wires and reconfigure the system.
How to fix 'Unknown Device Detected' on my Lennox icomfort Touch?
If your Lennox Thermostat detects an 'Unknown Device', clear it by reconfiguring the system. Press and hold the Lennox Logo, press the setup tab, press start, and press confirm. If the problem persists, check all device connections to ensure they are icomfort-compatible.
General| Display Type | Color Touchscreen |
|---|---|
| Wi-Fi Connectivity | Yes |
| Compatibility | Lennox HVAC Systems |
| Programmability | 7-day Programmable |
| Energy Monitoring | Yes |
| Humidity Control | Yes |
| Voice Control Compatibility | Amazon Alexa, Google Assistant |
| Remote Access | Yes, via App |
| Energy Savings | Yes |
| Indoor Air Quality Integration | Yes |
Configuration options for system parameters, including date, time, and dealer information.
Procedure to set the current time and date on the thermostat.
Steps to integrate non-communicating AC or heat pump units into the system.
Procedure to add humidifier and dehumidifier devices to the system.
Configuring timers and temperature differentials for equipment stages.
Steps to clear critical and service alerts after addressing the underlying issue.
Initiating the system discovery and configuration process.
