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
421 Critical Smart Hub
W External Mis-wire
Fault
The W output terminal on the outdoor unit is not wired correctly. Voltage
sensed on W output terminal when Y1 out is deactivated.
Automatically clears
once voltage is not
sensed on output or
power is cycled.
594
Moderate /
Critical
Smart Hub
Pre-Coil Air temp
Sensor Problem
Pre-coil discharge air temperature sensor problem (dual-fuel mode only).
Advances from moderate to critical after ten (10) minutes.
Interlock relay energized, but input not sensed after three seconds.
No heating and cooling operations.
De-energize interlock relay and re-energized ve minutes later if demand
is still present.
Alarm clears ve
minutes after fault
clears.
610 Critical Thermostat
Low Room
Temperature
Detected
This alert will automatically notied the user that a low room temperature
condition exist. A notication is displayed on the HD Display and email
notication sent to homeowner and dealer.
The freeze alert protection parameter range is 30°F to 50°F (-1.11 to
10.0°C). Default is 40°F (4.44°C).
Notication is dependent on the thermostat having a active Wi-Fi
connection and the user account has been setup and includes a valid
email address.
Automatically clears
when condition is
resolved.
611 Critical Thermostat
High Room
Temperature
Detected
This alert will automatically notied the user that a high room temperature
condition exist. A notication is displayed on the HD Display and email
notication sent to homeowner and dealer.
The heat alert protection parameter range is 80°F to 100°F (26.67 to
37.78°C). Default is 90°F (32.22°C).
Notication is dependent on the thermostat having a active Wi-Fi
connection and the user account has been setup and includes a valid
email address.
Automatically clears
when condition is
resolved.
700 Critical
E30 HD
Display Unit or
Mag-Mount
Comfort Sensor
Temp Sensor
Problem
The temperature sensor in the HD Display is not working properly.
Run reset all under Dealer Control Center.
Try removing display from mag-mount and reattaching.
If issue persist, then replace either the E30 HD Display or Mag-Mount.
Automatically clears
when the system
detects that the issue
no longer exists.