White Rodgers 1F95EZ-0671 Manual De Usuario

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Symptom
Possible Cause
Corrective Action
No Heat/No Cool/No Fan
(common problems)
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.
4. Loose connection to thermostat or system.
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage safety 
interlock or door switch.
Tighten connections.
No Heat
1. Pilot light not lit.
2. Furnace Lock-Out Condition. Heat
  may also be intermittent.
3. Heating system requires service or
  thermostat requires replacement.
Re-light pilot.
Many furnaces have safety devices that shut down when 
a lock-out condition occurs. If the heat works intermittently 
contact the furnace manufacturer or local HVAC service 
person for assistance.
Diagnostic: Set System 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 HVAC service 
person to verify the heating is operating correctly.
No Cool                                   
      
1. Cooling system requires service or
  thermostat requires replacement.
Same 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 fi ve minute delay 
before the thermostat clicks in Cooling.
Heat, Cool or Fan
Runs Constantly
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 block. Try resetting the thermostat as de-
scribed above. 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.
Thermostat Setting &
Thermostat Thermometer 
Disagree
1. Thermostat thermometer setting
 requires 
adjustment.
The thermometer can be adjusted +/- 4 degrees. See 
Temperature Display Adjustment in the Confi guration 
Menu section.
Furnace (Air Conditioner)
Cycles Too Fast or Too Slow 
(narrow or wide 
temperature swing)
1. The location of the thermostat and/or
  the size of the Heating System may
  be infl uencing the cycle rate.
Digital thermostats provide precise control and cycle 
faster than older mechanical models. The system turns 
on and off more frequently but runs for a shorter time 
so there is no increase in energy use. If you would like 
an increased cycle time, choose SL for slow cycle in the 
Confi guration menu reference, steps 4 through 6. If an ac-
ceptable cycle rate is not achieved, contact a local HVAC 
service person for additional suggestions. 
Forgot Keypad
Lockout Code
Press the menu button (button will disappear) and hold in 
for 20 seconds. This unlocks the thermostat.
 
Reset Operation
Note: When thermostat is reset, installer confi guration menu settings and programming will reset to factory settings.
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermo-
stat by removing the wires from terminals RH and RC (do not short them together) and removing batteries for 2 minutes. After 
resetting the thermostat, replace the wires and batteries. If the thermostat has been reset and still does not function correctly 
contact your heating/cooling service person or place of purchase. 
Note: Be sure to review the installer confi guration menu settings.
To reset the programming, clock and confi guration settings, press the 
 
 and FAN button simultaneously. The thermostat 
should go blank and then all segments will be displayed momentarily.
TROUBLESHOOTING
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a 
trademark and service mark
of Emerson Electric Co.
HOMEOWNER HELP LINE:  1-800-284-2925