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
124 Critical Thermostat
Active Subnet
Controller Missing
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.
Cycle power.
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).
125 Critical Thermostat
Control Hardware
Problem
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.
Remove jumper if present on indoor unit between R and W2 on Smart
Hub.
Automatically clears
ve minutes after the
issue no longer exists.
130 Moderate Smart Hub
Conguration
Jumper Missing
Conguration jumper missing on Smart Hub.
Install the missing jumper
Automatically clears
after the missing or
incorrectly installed
jumper is installed or
corrected.
132 Critical Thermostat
Failed Flash CRC
Check
System component control software is corrupted.
Recycle power.
If failure re-occurs, replace the system component control.
Manual system power
reset is required to
recover from this alert
code.