Enter Cooling Program
If the outside temperature is below 50°F, disconnect
power to the cooling system before programming.
Energizing the air conditioner compressor during cold
weather may cause personal injury or property dam-
age.
Move SYSTEM switch to COOL position.
2. Follow the procedure for entering your cooling program,
using your selected cooling times and temperatures.
CHECK YOUR PROGRAMMING
Follow these steps to check your thermostat programming one
final time before beginning thermostat operation.
1. Move SYSTEM switch to HEAT position.
2. Press PRGM to view the 1st weekday heating period time
and temperature. Each time you press PRGM, the next
heating period time and temperature will be displayed in
sequence for weekday, then weekend program periods (you
may change anytime or temperature during this procedure).
3. Press RUN.
4. Move SYSTEM switch to COOL position.
5. Repeat step 2 to check cooling program.
6. Move SYSTEM switch to HEATorCOOLand press RUN to
begin program operation.
YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED
AND READY TO PROVIDE MAXmMUM COMFORT AND EFFm-
ClENCY!
TROUBLESHOOTING
Reset Operation
If a voltage spike or static discharge blanks out the display or
causes erratic thermostat operation you can reset the thermo-
stat by pressing (_, (_ and TIME at the same time. This also
resets the factory defaults to the configuration menu and
program. If the thermostat has power, has been reset and still
does not function correctly contact your heating/cooling ser-
vice person or place of purchase.
Batteries
For optimum performance, we recommend replacing batteries
once a year with fresh "AA" alkaline batteries.
Symptom
No Heat/No Cool/No Fan
(common problems)
No Heat
No Cool
Possible Cause
1. Blown fuse or tripped circuit breaker
2. Furnace power switch to OFE
3. Furnace blower compartment door or
panel loose or not properly installed.
1. Pilot light not lit.
2. SYSTEM Switch not set to H EAT.
3. Loose connection to thermostat or system.
4. Furnace Lock-Out Condition. Heat may also
be intermittent.
5. Heating System requires service or thermostat
thermostat requires replacement.
1. SYSTEM Switch not set to COOL
2. Loose connection to thermostat or system.
3. Cooling System requires service or thermostat
requires replacement.
Corrective Action
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage
safety interlock or door switch.
Re-light pilot.
Set SYSTEM Switch to Heat and raise setpoint
above room temperature.
Verify thermostat and system wires are securely
attached.
Many furnaces have safety devices that shut the
system down when a lock-out condition occurs.
If the heat works intermittently contact the furnace
manufacturer or local service person for assistance.
Diagonistic: Set SYSTEM Switch to HEAT and
raise the setpoint above room temperature. Within
a few seconds the thermostat should make a soft
click sound. This sound usually indicates the
thermostat is operating properly. If the thermostat
does not click, try the reset operation listed above.
If the thermostat does not click after being reset
contact your heating and cooling service person or
place of purchase for a replacement. If the
thermostat clicks, contact the furnace manufacturer
or a service person to verify the heating system is
operating correctly
Set SYSTEM Switch to COOL and lower setpoint
below room temperature.
Verify thermostat and system wires are securely
attached.
Same procedure as diagnostic for No Heat
condition except set the thermostat to COOL and
lower the setpoint below the room temperature.
There may be up to a five minute delay before
the thermostat clicks in Cooling if the compressor
lock-out option is selected in the configuration
menu (Item 6).
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