White Rodgers 875 - Manual (Page 7)

7
NOTE
If you are programming your thermostat for the fi rst 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 simplifi ed COPY DAY
feature only works the fi rst time you program your thermostat.
If you want to copy one day’s programming to a specifi c 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
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.
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 confi guration menu and
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. Re-light pilot.
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 Lock-Out Condition. Heat may also Many furnaces have safety devices that shut the
be intermittent. system down when a lock-out condition occurs.
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.
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.
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
fi nal 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!
CAUTION !