Lennox iComfort E30 Installation And Setup Manual page 35

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.
Moderate alerts are not emailed to Homeowners. Dealers will get an email and code can be seen on thermostat under the installer notification section.
Applicable
Alert Priority
System
Code Condition
Component(s)
110 Critical Furnace
115 Critical Thermostat
120 Moderate Thermostat
124 Critical Thermostat
125 Critical Thermostat
130 Moderate Smart Hub
Table 16. Alert Codes and Troubleshooting
Actual
Displayed Component or System Operational State and Troubleshooting Tip
Alert Text
• The component AC line voltage is too low. This alert code may appear during a brownout. It may also occur when line voltage is
below its designed operating value.
Low AC Line
• Check and correct the power line voltage.
Voltage
Automatically clears when the system detects the issue no longer exists.
• 24VAC power to a system component control is lower than the required range of 18 to 30VAC.
• Check and correct voltage.
Low Secondary
• Check for additional power-robbing system components (devices) connected to system.
(24VAC) Voltage
• This alert code may require the installation of an additional or larger VA transformer.
Automatically clears when the system detects the issue no longer exists.
• There is a delay in the system component responding to the system. Typically this alert code does not cause any operational
issues and will clear on its own.
Unresponsive
• This alert code is usually caused by a delay in the outdoor unit responding to the thermostat.
DEVICE2.
• Check all wiring connections.
Automatically clears after an unresponsive system component (device) responds to any inquiry.
• The thermostat has lost communication with a system component for more than three minutes. System component has lost
communication with the thermostat.
• Check the wiring connections.
• Ohm wires.
Active Subnet
• Cycle power.
Controller Missing
• Check voltage at component.
• This alert code stops all associated system operations and waits for a heartbeat message from the system component that is not
communicating.
Automatically clears after communication is re-established with applicable system component (device).
• There is a hardware problem on a system component control. There is a control hardware problem.
• Replace the control if the problem prevents operation and is persistent.
Control Hardware
Problem
• Remove jumper if present on indoor unit between R and W2 on smart hub.
Automatically clears five minutes after the issue no longer exists.
• Configuration jumper missing on smart hub.
Configuration
• Install the missing jumper
Jumper Missing
Automatically clears after the missing or incorrectly installed jumper is installed or corrected.
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