Lennox ComfortSense 8500 Installation And Setup Manual page 29

Condition Issue
EEPROM error
Critical
(power-on)
EEPROM error
Critical
(operating)
Humidity sensor
error (without
Humidifier or
Critical Dehumidifier):
Sensor reads out
of range 0% to
100%
Table 10. Error Codes
Display System Action
System will restore
all settings to factory
default and resume
Memory
operations.
Error
This error is displayed
in notification
screen.
System will operate
in normal mode until
power off.
Memory
Error
This error is displayed
in notification
screen.
• The reading for
humidity is not
valid. This message
indicates humidity
sensor is not
working correctly.
When there is an
Humidity
error the home
Sensor
screen humidity
Error
display will indicate
"--".
• This error is
displayed on the
notification screen
as well.
29
Action to Clear / Recovery
Condition
Contact service contractor to
replace the CS8500.
Contact service contractor to
replace the CS8500.
Contact service contractor to
replace the CS8500.
If the sensor starts detecting a
normal operating range, the error
message will automatically clear
and the system will return to
normal operation.