NOTE
If you are programming your thermostat for the first time and you want programming for all days of the week to be the same as Monday’s program, press RUN or HOLD at this point, and proceed to Enter Cooling Program.(This simplified COPY DAY feature only works the first time you program your thermostat. If you want to copy one day’s programming to a specific day programming, refer to COPY DAY FUNCTION in OPERATING FEATURES.If you are changing your thermostat’s programming, you must program each day separately.)
8.Press HOLD once.“TU” (indicating Tuesday program) will ap- pear in the display, along with the start time for the 1st heating period and the currently programmed temperature.
9.Repeat steps 3 through 7 to complete Tuesday’s heating programming.
10.Continue entering each day’s programming until all heating periods time and temperatures have been entered.
11.When you have completed entering your heating program, press RUN.
Enter Cooling Program
!CAUTION
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 damage.
1.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 Monday heating period time and temperature. Each time you press PRGM, the next heating period time and temperature will be displayed in sequence for Monday. Press HOLD to display Tuesday’s 1st heating period, and press PRGM to view each of the remaining Tuesday’s heating period time and temperatures. To view each day’s heating program, press HOLD to change day and then press PRGM to look at each programming period for the day. (You may change any time 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 HEAT or COOL and press RUN to begin program operation.
YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO PROVIDE MAXIMUM COMFORT AND EFFICIENCY!
Reset Operation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the ther-
mostat by pressing 
, 
and TIME at the same time. This also resets the factory defaults to the configuration menu and
TROUBLESHOOTING
program. If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling service person or place of purchase.
Batteries
For optimum performance, we recommend replacing batteries once a year with fresh “AA” alkaline batteries.
Symptom | Possible Cause | Corrective Action |
No Heat/No Cool/No Fan | 1. Blown fuse or tripped circuit breaker. | Replace fuse or reset breaker. |
(common problems) | 2. Furnace power switch to OFF. | Turn switch to ON. |
| 3. Furnace blower compartment door or | Replace door panel in proper position to engage |
| panel loose or not properly installed. | safety interlock or door switch. |
|
|
|
No Heat | 1. Pilot light not lit. | |
| 2. SYSTEM Switch not set to HEAT. | Set SYSTEM Switch to Heat and raise setpoint |
|
| above room temperature. |
| 3. Loose connection to thermostat or system. | Verify thermostat and system wires are securely |
|
| attached. |
| 4. Furnace | Many furnaces have safety devices that shut the |
| be intermittent. | system down when a |
|
| If the heat works intermittently contact the furnace |
|
| manufacturer or local service person for assistance. |
| 5. Heating System requires service or | Diagnostic: Set SYSTEM Switch to HEAT and |
| thermostat requires replacement. | 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. |
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