RTH5100B
11 69-2330EFS—01
About your new thermostatBattery replacement
Install fresh batteries immediately
when the REPLACE BATT warning
begins flashing. The warning flash-
es about two months before the
batteries are depleted.
Even if the warning does not
appear, you should replace batter-
ies once a year, or before leaving
home for more than a month.
Batteries provide backup power to
the display during power interrup-
tions. All settings are permanently
stored in memory, and do not
require battery power.
Press down and pull to remove.
Insert fresh AAA alkaline
batteries, then reinstall
battery holder.
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