White Rodgers 1F80-0261 Emerson Blue 2" Single Stage Thermostat Installation Instruction

9

If a voltage spike or static discharge blanks out the display 
or causes erratic thermostat operation, reset the thermostat 
by pressing the 

, 

 and TIME buttons simultaneously. 

If the thermostat has power, has been reset and still does not 
function correctly contact your heating/cooling service person 
or place of purchase. 

1. Blown fuse or tripped circuit breaker.
2. Furnace power switch to OFF.
3. Furnace blower compartment door or  
    panel loose or not properly installed.

Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage safety 
interlock or door switch.

1. System Switch not set to Heat.

2. Loose connection to thermostat or 
    system
3. Heating System requires service or 
    thermostat requires replacement.

Set System Switch to Heat and raise setpoint above 
room temperature.
Verify thermostat and system wires are securely attached.
Diagnostic: Set System Switch to Heat and raise the 
setpoint above room temperature. Within a fi ve minutes 
the thermostat should make a soft slick 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 manufac-
turer or a service person to verify the heating system is 
operating correctly.

1. System Switch not set to Cool.

2. Loose connection to thermostat or 
    system.
3. Cooling System requires service or 
    thermostat requires replacement

Set System Switch to Cool and lower setpoint below 
room temperature.
Verify thermostat and system wires are securely attached.
Same procedures as diagnostic for No Heat condi-
tion except set the thermostat to Cool and lower the 
setpoint below the room temperature. There may be up 
to a fi ve minute delay before the thermostat clicks in 
Cooling if the compressor lock-out option is selected in 
the confi guration menu (Item 6). 

1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in Heat/Cool/Fan 
    system.
4. Fan Switch set to Fan On.

Check each wire connection to verify they are not 
shorted or touching together. No bare wire should 
stick out from under terminal screws. Try resetting the 
thermostat as described below. If the condition persists, 
the manufacturer of your system or service person 
can instruct you on how to test the Heat/Cool/ system 
for correct operation. If the system operates correctly, 
replace the thermostat.

1. The location of the thermostat and/
    or the size of the Heating or Cooling 
    System may be infl uencing the 
    cycle rate.

Item 4 (CR Heat) or 5 (CR Cool) in the Confi guration 
Menu is the adjustment that controls the cycle rate. If 
an acceptable cycle rate is not achieved using the FA 
(Fast) or SL (Slow) adjustment contact a local service 
person for additional suggestions.

1. Thermostat thermometer setting 
    requires adjustment.

The thermometer can be adjusted +/- degrees as listed 
in item 8 of the Confi guration Menu. No other adjust-
ment is possible.

1. Loss of power to thermostat.

The thermostat will maintain its program in memory 
even with no power but the clock time will be incorrect 
when power is restored. See No Heat/No Cool /No Fan 
(common problems) above for items to check in the 
system. 

1. EMR activated.

See Confi guration Menu (Item 3)

1. AM or PM set incorrectly in program.
2. AM or PM set incorrectly on the clock.
3. Voltage spike or static discharge.
4. See “Heat or Cool Starts Early” above.

Check current clock and program settings including 
the AM or PM designations for each time period. If a 
voltage spike or static discharge occurs use the Reset 
Operation listed above.

1. Voltage Spike or Static Discharge.

If a voltage spike or static discharge occurs use the 
Reset Operation listed above.