White Rodgers 1F80-224 specifications Troubleshooting, Symptom Possible Cause Corrective Action

TROUBLESHOOTING

Symptom	Possible Cause		Corrective Action
NoHeat/NoCool/NoFan	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
		panel loose or not properly installed.	safety interlock or door switch.
No Heat	1.	Pilot light not lit.	Re-light pilot.
	2.	System Switch not set to Heat.	Set System Switch to Heat and raise setpoint
			above room temperature.
	3.	Loose connection to thermostat or system.	Verify thermostat and system wires are securely
			attached.
	4.	Furnace Lock-Out Condition. Heat may also	Many furnaces have safety devices that shut the
		be intermittent.	system down when a lock-out condition occurs.
			If the heat works intermittently contact the furnace
			manufacturer or local service person for assistance.
	5. Heating System requires service or		Diagnostic: Set System Switch to Heat and raise
		thermostat requires replacement.	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
			service person to verify the heating system is
			operating correctly.
No Cool	1.	System Switch not set to Cool.	Set System Switch to Cool and lower setpoint
			below room temperature.
	2.	Loose connection to thermostat or system.	Verify thermostat and system wires are securely
			attached.
	3.	Cooling System requires service or thermostat	Same procedure as diagnostic for No Heat
		requires replacement.	condition except set the thermostat to Cool and
			lower the setpoint below the room temperature.
			There may be up to a five minute delay before
			the thermostat clicks in Cooling if the compressor
			lock-out option is selected in the configuration
			menu (Item 6).
Heat, Cool or Fan Runs Constantly.	1.	Possible short in wiring.	Check each wire connection to verify they are
	2.	Possible short in thermostat.	not shorted or touching together. No bare wire
	3.	Possible short in Heat/Cool/Fan system.	should stick out from under terminal screws.
	4.	Fan Switch set to Fan On.	Try resetting the thermostat. 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.
Furnace Cycles Too Fast or Too Slow	1.	The location of the thermostat and/or the size	Item 2 in the Configuration Menu is the adjustment
(narrow or wide temperature swing)		of the Heating System may be influencing the	that controls the cycle rate. If an acceptable cycle
		cycle rate.	rate is not achieved using the FA (Fast) or SL
			(Slow) adjustment contact a local service person for
			additional suggestions.
Cooling Cycles Too Fast or Too Slow	1.	The location of the thermostat and/or the size	The cycle rate for cooling is fixed and can not be
(narrow or wide temperature swing)		of the Cooling System may be influencing the	adjusted. Contact a local service person for
		cycle rate.	suggestions.
Thermostat Setting and Thermometer	1.	Thermostat thermometer setting requires	The thermometer can be adjusted +/- 4 degrees as
Disagree		adjustment.	listed in item 7 of the Configuration Menu. No other
			adjustment is possible.
Clock Loses or Gains Time	1.	Loss of power to thermostat and low batteries.	The thermostat will maintain its program in memory
			even with no power/no batteries 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.
Heat or Cool Starts Early	1.	EMR activated	See Configuration Menu (Item 4).
Thermostat Does Not Follow Program	1.	AM or PM set incorrectly in program.	Check current clock and program settings including
	2.	AM or PM set incorrectly on the clock.	the AM or PM designations for each time period.
	3.	Voltage spike or static discharge.	If a voltage spike or static discharge occurs use the
			Reset Operation listed above.
Blank Display and/or Keypad Not	1.	Loss of power and dead batteries.	Replace batteries and check heat/cool system for
Responding	2. Voltage Spike or Static Discharge.		proper operation. If a voltage spike or static discharge
		7	occurs use the Reset Operation listed above.