Lennox EIM - Page 15

15
Alert Codes and Troubleshooting
Alert Code Types
To expand a specication notication to access a more detail description of the alert code, press the down arrow to expand the description.
• Service Urgent alerts are displayed on Home (user) screen under the homeowner and installer alert buttons. Service Urgent means that a service
call is needed to get the system running.
• Service Soon / Service Urgent means that the system will likely recover on its own and no interaction is necessary. Typically, either after a specic
timer period or a specic number of instances, some Service Soon alerts will escalate to Service Urgent.
• Service Soon alerts are found only in under the installer alert button.
• Information Only-Dealer is information only and helps Lennox interpret test results and understand complicated behaviors. Information Only are
not reported to homeowner or dealer.
Communication System: When communication controls are operating in a communication system, all jumper and link setting on controls are ignored.
Jumpers and link setting are treated as defaults and would only be active if the system was converted to a non-communicating system.
Error codes are transmitted to the thermostat. No codes are stored in the EIM.
Table 1. Alert Codes and Troubleshooting
GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), PA=Pure Air S, ZA=Zone system and
TS=Thermostat
Alert
Code
Priority
Condition
Actual Displayed
Alert Text
Under dealer
control center >
Notications
Component or System Operational State and Troubleshooting Tip
How to clear
alert code
10
Service
Urgent
Unknown
Device Detected
The thermostat when NOT in conguration 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 ash 3 seconds on and 1 second o󰀨.
On the equipment interface module, the green LED will ash 3 seconds on and 1 second o󰀨.
A new communicating device has been added to the system since the original conguration setup was completed.
Go to menu > settings > advanced settings > view dealer control center > equipment and press reset all
equipment. This will allow the system to auto-detect any Lennox communicating devices attached.
Clear alert code by
reconguring the system.