55
a
lert
c
oDeS
Table 19. Alert Codes and Troubleshooting
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 e-mailed to Homeowners. Dealers will get an email and code can be seen on thermostat under the installer notification section.
NOTE:
Anytime the word
DEVICE
or
DEVICE2
is used in this table, it will be replaced on all alert code notification screens with the actual offending device name, for example, thermostat, heat
pump, etc.).
Alert
Code
Inverter
Flash
Code
Priority
Condition
Applicable
Component
Actual Displayed
Alert Text
Component or System Operational State and Troubleshooting Tip
10
Critical
All
communicating
components
Unknown Device
Detected -
DEVICE2
The thermostat when NOT in commissioning 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 be indicated 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 iHarmony control and equipment interface modules, the green LED will flash 3 seconds on and 1 second off.
•
A new communicating device has been added to the system since the last commissioning setup was completed.
•
Go to menu > settings > advanced settings > view dealer control center > equipment and press re-configure system. This will
allow the system to auto-detect any new Lennox communicating devices attached.
•
Clear alert code by reconfiguring the system.
11
Critical
All
communicating
components
Missing DEVICE2
The thermostat cannot find a previously installed system component.
•
Check all system components (devices) connection wiring.
• Cycle system power.
•
Go to menu > settings > advanced settings > view dealer control center > equipment and press re-configure system. This will
allow the system to auto-detect any new Lennox communicating devices attached.
•
Cycle system power, and If problem persists then clear by reconfiguring the system.
12
Critical
Indoor Unit Incomplete System
Thermostat did not detect a communicating indoor unit.
•
Check for voltage and missing components.
• Check R, i+, i- and C connections at subbase, smart hub and all attached communicating components.
• Ohm wires for electrical continuity.
•
Cycle power to both indoor unit first and then thermostat.
•
Verify that equipment interface module (if applicable) is configured as either an air handler or furnace when used with a non-
communicating indoor unit.
• Go to
menu
>
settings
>
advanced settings
>
view dealer control center
>
equipment
and press
re-configure system
.
This will allow the system to auto-detect any new Lennox communicating devices attached.
• Replace indoor unit control if there is no response.
• Automatically clears when the system detects that the issue no longer exists.
13
Critical
Duplicate
Equipment
Duplicate Comfort
Sensor ID
Thermostat found more than one indoor, outdoor unit or thermostat connected to the system. Thermostat will display the
message “Too Many Devices of the Same Type”.
•
Check wiring and remove duplicate equipment.
• Go to
menu
>
settings
>
advanced settings
>
view dealer control cente
r >
equipment
and press
re-configure system
.
This will allow the system to auto-detect any new Lennox communicating devices attached.
• Automatically clears when the system detects that the issue no longer exists.
