White Rodgers 1F85RF-275 specifications Homeowner Help Line

TROUBLESHOOTING

Symptom	Possible Cause	Corrective Action
Furnace	1. The location of the thermostat and/or	Digital thermostats normally provide precise
(Air Conditioner)	the size of the Heating System may	temperature control and may cycle faster than some
Cycles Too Fast	be influencing the cycle rate.	older mechanical models. A faster cycle rate means
or Too Slow (narrow or		the unit turns on and off more frequently but runs for
wide temperature swing)		a shorter time so there is no increase in energy use.
		If you would like to increase the cycle time, choose
		SL for slow cycle in the menu, step 4. If an accept-
		able cycle rate is not achieved as received or by
		choosing slow cycle, contact a local service person
		for additional suggestions.
Thermostat Setting &	1. Thermostat thermometer setting	The thermometer can be adjusted +/- 3 degrees.
Thermostat Thermometer	requires adjustment.	See Temperature Display Adjustment in the
Disagree		Configuration Menu section.
Blank Display and/or	1. Voltage spike or static discharge.	Use the Reset Operation at top of previous page.
Keypad Not Responding
Heat Setpoint will	1. The desired setpoint conflicts with the	Change system mode to COOL. Raise the Cool
not Respond to the	setpoint of the COOL mode.	setpoint. Return to HEAT mode and set desired
Temperature Up Key		temperature.
Cool Setpoint will	1. The desired setpoint conflicts with the	Change system mode to HEAT. Lower the Heat
not Respond to the	setpoint of the HEAT mode.	setpoint. Return to COOL mode and set desired
Temperature Down Key		temperature.
Forgot Keypad		With the thermostat in any mode, press			and
Lockout Code		at the same time to enter the configuration menu at
		the point where the lockout code is to be entered.
		Press	and	and SYSTEM button at the same
		time to reset the lockout code, unlock the keypad.
Why won't my 2nd or		Your thermostat is designed to determine the
3rd stage come on?		optimum time to activate the second stage. Simply
		raising the temperature in heating or lowering it in
		cooling will not always force the thermostat to bring
		the second stage on quickly. There is a time delay
		from 0-30 minutes depending on the performance of
		the first stage of the system.

HOMEOWNER HELP LINE: 1-800-284-2925

White-Rodgers is a division of Emerson Electric Co.

The Emerson logo is a trademark and service mark of Emerson Electric Co.

St. Louis, MO

www.white-rodgers.com