Page 33
TroubleShooting
SYMPTOM:
The air conditioning does not attempt to turn on.
CAUSE:
The cooling setpoint is set too high.
REMEDY:
Lower the cooling setpoint or lower the cooling set-
point limit. See Setpoint Limits (page 22).
SYMPTOM:
The air conditioning does not attempt to turn on.
CAUSE:
The compressor timer lockout may prevent the air
conditioner from turning on for a period of time.
REMEDY:
Consult the Owner's Manual in the Installer Setup
section to defeat the Cycles Per Hour (page 22).
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
SYMPTOM:
The display is blank.
CAUSE:
Lack of proper power.
REMEDY:
Make sure the power is on to the furnace and that
you have 24vac between
R
&
C
.
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
SYMPTOM:
The heating does not attempt to turn on.
CAUSE:
The heating setpoint is set too low.
REMEDY:
Raise the heating setpoint or raise the heating set-
point limit. See Setpoint Limits (page 22).
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
SYMPTOM:
When controlling a residential heat pump, and
asking for cooling, the heat comes on.
CAUSE:
The thermostat reversing valve jumper is set for
“B”.
REMEDY:
Set the reversing valve jumper for
“O”.
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
SYMPTOM:
When calling for cooling, both the heat and cool
come on.
CAUSE:
The thermostat equipment jumper is configured for
“HP”
and the HVAC unit is a Gas/Electric.
REMEDY:
Set the equipment jumper for
“Gas”.
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
SYMPTOM:
When the Program button is pressed, the display
reads “DISABLED”.
CAUSE:
Program mode is set to
“NON PROGRAM”.
REMEDY:
Set Program Mode (Setup 1) to
1
,
5/2
, or
7 Day.
See Selecting Your Program Mode (page 21).
I
Am
Outdoor
COOL SET
HEAT ET
S
2:00
78
74
68
85
MO
YOUR NAME
COOLER
MODE
WARMER
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