White Rodgers 1E50N-303 New Thermostat Operation, Specifications, Troubleshooting, Symptom

6 NEW THERMOSTAT OPERATION

This thermostat is easy to operate. After power is turned on, raise temperature abo- ve room temperature to turn the heating system on. Lower temperature below room temperature to turn heating system off.

7 SPECIFICATIONS

ELECTRICAL DATA
Switch Rating	24 VAC (30 VAC max.)
Heating	0.15 to 1.2 Amps
Anticipator Rating:
Heating	Adjustable from 0.15 to 1.2 Amps

Heat

Anticipator (adjustable)

WR

Heating

System

24 VAC

THERMOSTAT

SYSTEM

Hot

120 VAC

Neutral

THERMAL DATA:
Temperature Range	50°F to 90°F (10°C to 32°C)
Operating Humidity Range	0 – 90% noncondensing

Figure 3. Typical wiring for single transformer heating system

8 TROUBLESHOOTING

Symptom	Possible Cause		Corrective Action
No Heat/ 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 safety interlock or door switch.
		panel loose or not properly installed.
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 qualifi ed service person check the system
			before replacing thermostat.
	3.	Loose connection to thermostat or	Verify thermostat and system wires are securely attached.
		system.
	4. Thermostat or heating system requires		Your furnace manufacturer or service person can describe how to test the heating system to
		replacement or service.	verify it is operating correctly. If the heating system is capable of operation and the no heat
			condition persists, replace the thermostat.
	5. Setpoint temperature below room		Raise temperature above room temperature.
		temperature.
Intermittent Heat	1.	Furnace Lock-Out Condition	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.
Heat or Fan Runs	1.	Possible short in wiring.	Check each wire connection to the thermostat to verify it is neatly looped under the terminals.
Constantly.	2.	Possible short in thermostat.	No extra wire should stick out from under the terminals.
	3.	Possible short in heat/cool/fan system.
Furnace Cycles Too	See Step 5, Adjusting the Anticipator.		The anticipation setting is the only adjustment that effects the heating cycle rate. If an
Fast or Too Slow			acceptable cycle rate is not achieved using the anticipator contact a local service person for
(Narrow or wide			additional suggestions. The location of the thermostat, size of the Heat/Cool System and
temperature swing)			current draw can infl uence the cycle rate.
Thermostat Setting	1.	Thermostat thermometer setting	The thermometer can be adjusted by using a standard slotted screwdriver. Turn the
and Thermostat		requires adjustment.	thermometer pointer screw located inside the front cover to change the setting. For calibrating
Thermometer Disagree	2.	Thermostat setting lever requires	the setting lever contact a local heating and cooling service person.
		calibration.
Adjusting Thermometer	1.	Thermostat thermometer disagrees	The thermometer on the thermostat is accurately calibrated at our factory but you can adjust
		with other room thermometers.	it by using a standard slotted screwdriver. Turn the thermometer pointer screw located inside
			the front cover to change the setting.

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