How do I restore the factory/EnergyStar default program settings?
To restore EnergyStar default settings, press SET CLOCK/DAY/SCHEDULE, then press SET SCHEDULE, then press DONE and NEXT at the same time for 4 seconds. The default schedule assumes you wake at 6 am, leave at 8 am, return at 6 pm, and go to bed at 10 pm. These pre-set energy-saving levels can reduce heating/cooling expenses by as much as 33%. (Page 18)
From the official Honeywell TH6110D Programmable Digital Thermostat manual, page 18
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