White Rodgers UP310 Install Manual page 35

Resetting the Thermostat or Thermostat Settings
If the thermostat has good batteries, but has a blank display or does not respond to key presses, the thermostat
should be reset by removing the batteries for 2 minutes. This reset will not change the menu settings or program.
If the condition persists after reinstalling the batteries, replace the thermostat.
To conveniently reset only the schedule and user settings back to factory defaults, press Menu and Backlight
buttons at the same time and hold until the display goes blank and resets.
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