4.What happens if the electricity goes off or is manually shut off?

If you have not installed a 9 volt alkaline battery, the display will go blank and the program will be lost in approximately one minute. When electricity is restored, the

thermostat will maintain a heating tempera- ture of 64°F and a cooling temperature of 82°F until you reenter your program. Set- point temperature will not be displayed.

If a fresh 9 volt Energizer® alkaline battery is installed, the program will be maintained for about one week with no 24 VAC power present to the thermostat. See OPERAT-

ING YOUR THERMOSTAT.

5.Why can’t I program the thermostat in the AUTO mode?

The thermostat can only be programmed in the HEAT and COOL modes. See PRO-

GRAMMING YOUR THERMOSTAT.

6.What can cause the thermostat display to freeze or go blank?

A completely blank display may indicate that power has been lost to the thermostat and the backup battery is also dead. How- ever, if there is power to the thermostat and the display is blank or frozen, static dis- charge is probably the cause.

During periods of low humidity (especially during cold weather), you may feel or see a spark discharge when you touch the ther- mostat. This may cause the program to be lost or the thermostat to display incorrectly.

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White Rodgers 1F91W-71 manual ING Your Thermostat, Why can’t I program the thermostat in the Auto mode?

1F91W-71 specifications

The White Rodgers 1F91W-71 is a prominent thermostat designed for consumers seeking advanced climate control solutions in residential settings. This device is notable for its user-friendly interface and a variety of features that enhance energy efficiency and comfort within the home.

One of the key aspects of the 1F91W-71 is its programmable capabilities, allowing users to set specific temperatures according to their schedule. This feature enables homeowners to optimize their energy consumption, reducing costs while maintaining a comfortable environment. The thermostat offers a schedule that can be customized for weekdays and weekends, allowing flexibility for different routines.

The design of the 1F91W-71 is both sleek and functional, with a clear display that is easy to read. The large, backlit screen ensures visibility even in low-light conditions, making adjustments straightforward. The intuitive layout of the buttons simplifies the experience for users of all ages.

In terms of technology, the White Rodgers 1F91W-71 incorporates advanced predictive algorithms that learn from the user’s behavior to optimize heating and cooling cycles. This smart capability helps in achieving the desired temperature more efficiently, minimizing energy wastage.

Another noteworthy feature is the thermostat's compatibility with various heating and cooling systems, including conventional gas, oil, and electric systems, as well as heat pumps. This versatility makes it an attractive option for many households, particularly those looking to upgrade from older, less efficient models.

The 1F91W-71 also includes features like a filter indicator, which reminds users when it's time to replace or clean the HVAC filter, ensuring that the system operates efficiently. Moreover, the thermostat supports battery backup, ensuring that settings are retained even during power outages.

Users will also appreciate the unit's easy installation process, accompanied by clear instructions, making it accessible for those who prefer a DIY approach. Overall, the White Rodgers 1F91W-71 combines advanced features, ease of use, and compatibility with various HVAC systems, making it a comprehensive solution for homeowners seeking greater control over their indoor climate. With its user-centric design and energy-saving technologies, this thermostat stands as a reliable choice for modern heating and cooling management.