Lennox iComfort E30

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Table 16. Alert Codes and Troubleshooting
Initial notication of critical alerts will pop up on the home screen and will be listed under notication menu. Minor and moderate alerts are found only under the
notication menu.
Alert
Code
Priority
Condition
Applicable
System
Component(s)
Actual Displayed
Alert Text
Component or System Operational State and Troubleshooting Tip
How to clear alert
code
10 Critical Thermostat
Unknown Device
Detected -
DEVICE2
The thermostat when NOT in conguration mode has detected an
unknown device. Typically the thermostat will send a command to the
unknown device and place the device into a soft disable state. The soft
disable control will indicate so as follows:
On air handler, furnace and outdoor controls, the soft-disabled state is
displayed by double horizontal lines on seven-segment display.
On the damper control module, the green LED will blink 3 seconds on and
1 second off.
On the equipment interface module, the green LED will blink 3 seconds on
and 1 second off.
A new communicating device has been added to the system since the
original conguration setup was completed.
Go to menu > advanced settings > view dealer control center > equipment
and press reset all equipment. This will allow the system to auto-detect any
iComfort components attached.
Clear alert code by
reconguring the
system.
12 Critical Thermostat Incomplete System
Thermostat did not nd an indoor unit. Make sure there is an iComfort
indoor unit on the system.
Check for voltage and missing component.
Check R, i+, i- and C connections.
Ohm wires for electrical continuity.
Cycle power to both indoor unit rst and then thermostat.
Verify that equipment interface module (if applicable) is congured as
either an air handler or furnace when used with a non-communicating
indoor unit.
Go to menu > advanced settings > view dealer control center >
equipment and press reset all equipment. This will allow the system to
auto-detect any iComfort components attached.
Replace indoor unit control if there is no response.
Automatically clears
when the system
detects that the issue
no longer exists.
14 Critical Thermostat
Too Many Devices
of the Same Type
The thermostat found more than one thermostat on the system.
Check wiring and remove duplicate equipment.
Go to menu > advanced settings > view dealer control center >
equipment and press reset all equipment. This will allow the system to
auto-detect any iComfort components attached.
Automatically clears
when the system
detects that the issue
no longer exists.