Troubleshooting - White Rodgers 1E56N-444 Installation Instructions Manual

8

TROUBLESHOOTING

Symptom Possible Cause
No Heat/No Cool/No Fan 1. Blown fuse or tripped circuit breaker.
(common problems) 2. Furnace power switch to OFF.
3. Furnace blower compartment door or
panel loose or not properly installed.
No Heat 1. Pilot light not lit.
2. Broken or melted anticipator wire.
3. Loose connection to thermostat or system.
4. Thermostat or heating system requires
replacement or service.
5. System Switch not set to Heat.
Intermittent Heat 1. Furnace Lock-Out Condition
No Cool 1. Loose connection to thermostat or system.
2. Thermostat or cooling system requires
replacement or service.
3. System Switch not set to Cool.
Heat, Cool or Fan Runs 1. Possible short in wiring.
Constantly. 2. Possible short in thermostat.
3. Possible short in heat/cool/fan system.
Furnace Cycles Too Fast See Step 5, Adjusting the Anticipator.
or Too Slow Narrow or
wide temperature swing
Cooling Cycles Too Fast
1. Poor thermostat location for sensing room
or Too Slow (narrow or temperature.
wide temperature swing) 2. Cooling system over or undersized.
3. Excessive Current draw influencing thermostat.
Thermostat Setting and
1. Thermostat thermometer setting requires
Thermostat Thermometer adjustment.
Disagree 2. Thermostat setting lever requires calibration.
Adjusting Thermometer
1. Thermostat thermometer disagrees with
other room thermometers.
Corrective Action
Replace fuse or reset breaker.
Turn switch to ON.
Replace door panel in proper position to engage
safety interlock or door switch.
Re-light pilot.
Excessive current or dead short in system. Have a qualified service person check the system before
replacing thermostat.
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.
Set System Switch to Heat and raise temp above room temp.
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.
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.
Set System Switch to Cool and lower temp below room temp.
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.
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.
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.
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.
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.