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RTH5100B
13 69-2330EFS—01
About your new thermostatIn case of difficulty
If you have difficulty with your thermostat, please try the following
suggestions. Most problems can be corrected quickly and easily.
Display is
blank
• MakesurefreshAAAalkalinebatteriesarecorrectly
installed (see page 10).
Temperature
settings do
not change
Make sure heating and cooling temperatures are set to
acceptable ranges (see Installation Guide to adjust this
setting):
• Heat:40°to90°F(4.5°to32°C).
• Cool:50°to99°F(10°to37°C).
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