To reset a digital Honeywell thermostat back to its factory default settings, the process depends on your specific model layout. For modern touchscreen units, navigate to Menu, select Preferences or Device Settings, and choose Factory Reset. For standard programmable models, you typically press and hold specific combinations of buttons like Menu and Select or use a pinhole reset button inside the battery compartment. Verification: Check that custom schedules are erased and the display returns to its default screen.
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