Lennox iComfort E30 Installation And Setup Manual page 33

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)
10 Critical Thermostat
14 Critical Thermostat
105 Critical Thermostat
110 Critical Furnace
115 Critical Thermostat
120 Moderate Thermostat
Table 16. Alert Codes and Troubleshooting
Actual Displayed Alert
Component or System Operational State and Troubleshooting Tip
Text
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 blink 3 seconds on and 1 second off.
Unknown Device
• On the equipment interface module, the green LED will blink 3 seconds on and 1
Detected - DEVICE2
second off.
• A new communicating device has been added to the system since the original
configuration setup was completed.
• Go to menu > advance settings > view dealer control center > equipment and press
reset all equipment. This will allow the system to auto-detect any iComfort components
attached.
The thermostat found more than one thermostat on the system.
• Check wiring and remove duplicate equipment.
Too Many Devices of the
• Go to menu > advance settings > view dealer control center > equipment and
Same Type
press reset all equipment. This will allow the system to auto-detect any iComfort
components attached.
A system component has lost communication with the system. System component (de-
vice) is unable to communicate.
• This may indicate the existence of other active alert codes.
Communication Problem • In most cases errors are related to electrical noise. Verify that high voltage power is
separated from the low voltage communication wires.
• Check for incorrectly wired or loose connections between system components (devices).
• Check for a high voltage source of noise close to the system.
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 Voltage
• Check and correct the power line voltage.
24VAC power to a system component control is lower than the required range of 18 to
30VAC.
Low Secondary (24VAC)
• Check and correct voltage.
Voltage
• Check for additional power-robbing system components (devices) connected to system.
• This alert code may require the installation of an additional or larger VA transformer
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 DEVICE2. • This alert code is usually caused by a delay in the outdoor unit responding to the
thermostat.
• Check all wiring connections.
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How to clear alert code
Clear alert code by reconfiguring
the system.
Automatically clears when the
system detects that the issue no
longer exists.
Automatically clears when the
system detects the issue no longer
exists.
Automatically clears when the
system detects the issue no longer
exists.
Automatically clears when the
system detects the issue no longer
exists.
Automatically clears after an
unresponsive system component
(device) responds to any inquiry.