Lennox CS7500 User Manual

31
Error
Code
Screen Text Priority
0: high
1: middle
2: low
Message
Type
Condition System Action Action to Clear
/ Recovery
Condition
9
no external
sensor
1 critical
The outdoor
temperature
sensor is out of
range
(-50°F to 180°F)
For Outdoor
Temperature Sensor:
No Humiditrol or
Humidity operation.
D terminal stays
activated and other
operation will continue
to operate.
Thermostat will stop
the system operation
if input from requires
outdoor temperature
information when any
of these conditions,
i.e. balance point
control and 2nd stage
lock in are applicable.
System will default
to mode of operation
that does not required
input from the outdoor
temperature sensor.
The temperature display
on the home screen will
be disabled. If user turns
on the display from user
settings and error will
be displayed again.
This error is displayed in
notication screen.
Replace outdoor
temperature
sensor.

Lennox CS7500 Specifications

General

Brand	Lennox
Model	CS7500
Category	Thermostat
Language	English