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Advanced Installation Guide
Troubleshooting
If you have difficulty with your thermostat, please try
the following suggestions. Most problems can be cor-
rected quickly and easily.
Display is blank
Temperature
settings do not
change
Fan does not
turn on when
heat is required
69-2446ES—01
•
Make sure fresh AA alkaline
batteries are correctly installed
(see page 9).
•
Make sure heating and cooling
temperatures are set to
acceptable ranges:
•
Heat: 40° to 90°F (4.5° to 32°C).
•
Cool: 50° to 99°F (10° to 37°C).
•
Check Heating Fan Control to
make sure it is set to match
your heating equipment (see
page 8).
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