Lennox iComfort E30 Installation And Setup Manual page 34

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.
Applicable
Alert Priority
System
Code Condition
Component(s)
124 Critical Thermostat
125 Critical Thermostat
130 Moderate Smart Hub
132 Critical Thermostat
180 Critical Smart Hub
310 Moderate Smart Hub
344 Critical Furnace
Table 16. Alert Codes and Troubleshooting
Actual Displayed Alert
Component or System Operational State and Troubleshooting Tip
Text
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 Controller
Missing
• 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.
There is a hardware problem on a system component control. There is a control hardware
problem.
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.
• Configuration jumper missing on Smart Hub.
Configuration Jumper
Missing
• Install the missing jumper
System component control software is corrupted.
Failed Flash CRC Check • Recycle power.
• If failure re-occurs, replace the system component control.
The thermostat has found a problem with a system component's outdoor temperature sen-
sor. In normal operation after system component control recognizes sensors, the alarm
will be sent if valid temperature reading is lost.
• Compare outdoor sensor resistance to temperature / resistance charts in unit installation
instructions.
Outdoor Temperature
Sensor Problem • Replace sensors pack if necessary.
• At the beginning of (any) configuration, furnace, air-handler control or equipment
interface module will detect the presence of the sensor(s).
• If detected (reading in range), appropriate feature will be set as 'installed' and shown
in the 'About' screen.
There is a discharge air temperature sensor issue.
• Compare discharge temperature sensor (DATS) resistance to temperature / resistance
charts in system component installation instruction.
Discharge Air Temp
• Replace discharge air sensor if necessary.
Sensor Problem
NOTE: Confirm there is no short or open circuits in the iComfort thermostat connections
to any of the other components in the communication system.
NOTE: Issues with a DATS connected to Smart Hub not generate an alert code.
Link Relay Problem. Relay Y1 Failure
Relay Y1 Stuck
• Possible Y1 relay failure.
• All system operations will stop.
34
How to clear alert code
Automatically clears after com-
munication is re-established with
applicable system component
(device).
Automatically clears five minutes
after the issue no longer exists.
Automatically clears after the miss-
ing or incorrectly installed jumper is
installed or corrected.
Manual system power reset is
required to recover from this alert
code.
Automatically clears upon configu-
ration, or sensing normal values.
Automatically clears 30 seconds
after condition is detected as recov-
ered or after system restart.
Automatically clears five minutes
after Y1 input sensed OFF.