Lennox S40 - Page 85

85
Table 21. Lennox S40 Smart Thermostat Alert Codes and Troubleshooting
E2A=Errors to Action, GF= Gas Furnace, AH=Air Handler, IU=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OU=Outdoor Unit (AC or HP), PA=Pure Air S, ZA=Zone system,
SRS=Smart Room Sensor, TS=Thermostat , IAQ- IAQ Monitor and WE=Wi-Fi Extender
Alert
Code
Inverter
Flash
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
65538
Information
Only - Dealer
Missing Mag Mount
Base
• Base not detected for at least 30 seconds.
• Amber LED is displayed on thermostat.
• Mount and wire mag-mount before powering up thermostat.
Automatically clears
once is detected for
two seconds.
65539
Service
Urgent
Thermostat Lost
Connection or Internal
Fault
• HD wall display not detected for more than 30 seconds.
• Solid blue LED will appear on mag-mount if powered. Only on versions with mag-mount.
• Flashing blue LED will appear if not communicating with thermostat. Only on versions with mag-mount.
• Typically the thermostat will send a command to the unknown device and place it in a soft disable state.
The Lennox communicating control with the soft disable state will indicate so as follows:
• On air handler, furnace and outdoor controls, the 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 off.
• On the equipment interface module, the green LED will ash 3 seconds on and 1 second off.
Cycling power to the soft disabled control may clear the condition. If cycling power does not clear the soft
disable state then replace control.
Automatically clears
once is detected for
two seconds.
65540
Information
Only-Dealer
Missing HD wall
display
• HD wall display not detected for less than 30 seconds.
• Solid blue LED will appear on mag-mount if powered. Only on versions with mag-mount.
• Blinking blue LED will appear if not communicating with thermostat. Only on versions with mag-mount.
• Typically the thermostat will send a command to the unknown device and place it in a soft disable state.
The Lennox communicating control with the soft disable state will indicate so as follows:
• On air handler, furnace and outdoor controls, the state is displayed by double horizontal lines on seven-
segment display.
• On the damper control module, the green LED will blink three seconds on and one second off.
• On the equipment interface module, the green LED will blink three seconds on and one second off.
Cycling power to the soft disabled control may clear the condition. If cycling power does not clear the soft
disable state then replace control.
Automatically clears
once is detected for
two seconds.
65541
Information
Only-Dealer
Download Failed
• Download for rmware failed.
• Typically the thermostat will send a command to the unknown device and place it in a soft disable state.
The Lennox communicating control with the soft disable state will indicate so as follows:
• On air handler, furnace and outdoor controls, the state is displayed by double horizontal lines on seven-
segment display.
• On the damper control module, the green LED will blink three seconds on and one second off.
• On the equipment interface module, the green LED will blink three seconds on and one second off.
Cycling power to the soft disabled control may clear the condition. If cycling power does not clear the soft
disable state then replace control.
Not applicable.