Lennox S40 - Page 87

87
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
70001 Service Soon
IAQ: Internal Sensor
Fault
This issue will occur when:
• Any of the CO
2
, VOC and PM sensors output experiences an internal communication outage.
• Collected data values are out of range.
Cycle device power may clear condition.
To cycle power, press the device pairing button for one second.
If cycling power does not resolve issue then:
• Remove device from the BLE network.
• Perform a factory reset of the device.
• Attempt to add device back to BLE network.
• If cycling power or
factory reset does
not resolve issue
then replace the
device.
• Automatically
clears when the
system detects
that the issue no
longer exists.
70002 Service Soon
IAQ: Internal Data
Fault
Unable to access internal data.
Cycle device power may clear condition.
To cycle power, press the pairing button for one second.
If cycling power does not resolve issue then:
• Remove device from the BLE network.
• Perform a factory reset of the device.
• Attempt to add device back to BLE network.
• If recycling power
or factory reset
does not resolve
issue then replace
device.
• Automatically
clears when the
system detects
that the issue no
longer exists.
70003
Service
Urgent
IAQ Side Switch in
OFF position
Slide the side switch to the ON position. ON is the up position.
• Set side switch to
ON position will
clear this alert
code.
• Automatically
clears when the
system detects
that the issue no
longer exists.
70004 Service Soon
IAQ: Replace Smart
IAQ Monitor
• The ve year service life of the device is about to expire.
• Device will continue to function however sensor data collected may become unreliable thus affecting air
quality in the home.
• Remove device
from thermostat
BLE network and
replace device.
• Automatically
clears when the
system detects
that the issue no
longer exists.
70501 Service Soon
Custom Sensor Name:
Internal Data Fault
Not able to collect samples communication fault) or measured value is out of range from any of the sensor
(TRH Sensor or Thermistor) or occupancy sensor voltage < 0.2V or > 2.5V, then condition is triggered.
• Power cycle Smart Room Sensor
• Wait for 10 minutes for self-clearing to take place, if condition is resolve for temperature and relative
humidity.
For occupancy sensor
self-clearing will take
45 minutes (3 x 15
minute internals)