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sends a soft disable command to the offending device on the communications
bus (outdoor control, IFC, AHC, EIM, or damper control module).
Re-Configure System
Use the following procedure if any controls are displaying the soft disable
indicator:
1. Confirm proper wiring between all devices such as thermostat and Smart
Hub.
2. Cycle power.
3. Go to the menu > settings > advanced settings > view dealer control
center. Touch proceed to continue.
4. Select equipment.
5. Touch reset.
6. Touch re-configure system.
7. Select confirm to continue.
8. The thermostat will reboot and start through the system commissioning
procedure.
Troubleshooting
Steps to follow if the damper control module is displaying the soft disable code
1. Confirm proper wiring between all devices (thermostat, damper control
module, indoor and outdoor).
Initial notification of critical alerts will pop up on the home screen and will be listed under notification menu. Minor and moderate alerts are found only under the notification menu.
Actual
Alert
Priority
Displayed Alert
Code
Condition
Text
Unknown Device
10
Critical
Detected -
DEVICE2
Table 24. Alert Codes and Troubleshooting
Component or System Operational State and Troubleshooting Tip
The thermostat when NOT in configuration 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 flash 3 seconds on and 1 second off.
• On the equipment interface module, the green LED will flash 3 seconds on and 1 second off.
• A new communicating device has been added to the system since the original configuration setup was completed.
• Go to menu > settings > advanced settings > view dealer control center > equipment and press reset all
equipment. This will allow the system to auto-detect any Lennox communicating devices attached.
2. Cycle power to the control that is displaying the soft disable code.
Resetting the Thermostat or HVAC Equipment
NOTE: Resetting the thermostat or any HVAC component will remove all
parameter adjustments. The system will need to be re-commissioned.
1. From the home screen select menu / settings / advanced settings / view
dealer control center / equipment / thermostat and scroll down to reset
Thermostat.
2. From the home screen select menu / settings / advanced settings / view
dealer control center / equipment / reset and scroll down to reset HVAC
equipment.
NOTE: Various control modes to actively humidify or dehumidify would be
available when the iComfort S30 or iComfort Wi-Fi are switched to
whole-home mode (non-zoning).
Zoning Alert Codes
To expand a specification notification to access a more detail description of
the alert code, press the down arrow to expand the description.
• Critical alerts are displayed on Home (user) screen, in the Homeowner alert
button, and in the Installer alert button. Critical means that a service call is
needed to get the system running.
• Moderate alerts are found only in the Installer alert button.
23
How Alert Code is Cleared
Clear alert code by reconfiguring the
system.
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