White Rodgers 1F83-277 Thermostat Setting, Thermostat Thermometer, Disagree, Blank Display and/or

TROUBLESHOOTING

Symptom

Possible Cause

Corrective

Action

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

CAUTION: This resets the thermostat to factory

Lockout Code

default settings of the configuration menu. After

performing this reset, the thermostat will require

configuration again. Be sure that you know the

required configuration settings before resetting.

With the thermostat in any mode, press and

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

and reset all configuration menu settings.

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.