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White-Rodgers 1F56N-444 Thermostat User Manual
TROUBLESHOOTING
8
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.
Replace fuse or reset breaker.
Turn switch to ON.
3. Furnace blower compartment door or
panel loose or not properly installed.
Replace door panel in proper position to engage
safety interlock or door switch.
No Heat
1. Pilot light not lit.
Re-light pilot.
2. Broken or melted anticipator wire.
Excessive current or dead short in system. Have a qualified service person check the system before
replacing thermostat.
3. Loose connection to thermostat or system.
4. Thermostat or heating system requires
replacement or service.
Verify thermostat and system wires are securely attached.
Your furnace manufacturer or service person can describe how to test the heating system to verify it is
operating correctly. If the heating system is capable of operation and the no heat condition persists,
replace the thermostat.
5. System Switch not set to Heat.
1. Furnace Lock-Out Condition
Set System Switch to Heat and raise temp above room temp.
Intermittent Heat
No Cool
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.
1. Loose connection to thermostat or system.
2. Thermostat or cooling system requires
replacement or service.
Verify thermostat and system wires are securely attached.
Your cooling system manufacturer or service person can describe how to test the cooling system to
verify it is operating correctly. If the cooling system is capable of operation and the no cooling condition
persists, replace the thermostat.
3. System Switch not set to Cool.
Set System Switch to Cool and lower temp below room temp.
Heat, Cool or Fan Runs
Constantly.
1. Possible short in wiring.
Check each wire connection to the thermostat to verify it is neatly looped under the terminals. No extra
wire should stick out from under the terminals.
2. Possible short in thermostat.
3. Possible short in heat/cool/fan system.
Furnace Cycles Too Fast
or Too Slow Narrow or
wide temperature swing
See Step 5, Adjusting the Anticipator.
The anticipation setting is the only adjustment that effects the heating cycle rate. If an acceptable cycle rate
is not achieved using the anticipator contact a local service person for additional suggestions. The location of
the thermostat, size of the Heat/Cool System and current draw can influence the cycle rate.
Cooling Cycles Too Fast
or Too Slow (narrow or
wide temperature swing)
1. Poor thermostat location for sensing room
temperature.
The cycle rate for cooling can not be adjusted. The location of the thermostat, size of the Cool system and
current draw can influence the cycle rate. Contact a local service person for suggestions.
2. Cooling system over or undersized.
3. Excessive Current draw influencing thermostat.
Thermostat Setting and
Thermostat Thermometer
Disagree
1. Thermostat thermometer setting requires
adjustment.
The thermometer can be adjusted by using a standard slotted screwdriver. Turn the thermometer pointer
screw located inside the front cover to change the setting. For calibrating the setting lever contact a local
heating and cooling service person.
2. Thermostat setting lever requires calibration.
Adjusting Thermometer
1. Thermostat thermometer disagrees with
other room thermometers.
The thermometer on the thermostat is accurately calibrated at our factory but you can adjust it by using a
standard slotted screwdriver. Turn the thermometer pointer screw located inside the front cover to change
the setting.
| General | Details |
|---|---|
| Name | White-Rodgers 1F56N-444 Thermostat User Manual |
| Make | WHITE RODGERS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.42 MB |
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