Honeywell RTH6300B Owner's Manual - Page 24

In case of difficulty - problems

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Installation Guide In case of difficulty If you have difficulty with your thermostat, please try the suggestions below. Most problems can be corrected quickly and easily. Display is blank • Make sure fresh AA alkaline batteries are properly installed (see page 14). Temperature settings do not change 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). Cannot change • Check Function 1: System Type to make sure it is set to match your system setting heating and cooling equipment (see page 17). to Cool Fan does not • Check Function 3: Heating Fan Control to make sure it is set to match turn on when your heating equipment (see page 19). heat is required 22

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Installation Guide
22
In case of difficulty
If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.
Display is blank
•
Make sure fresh AA alkaline batteries are properly installed (see page 14).
Temperature
settings do not
change
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).
Cannot change
system setting
to Cool
•
Check Function 1: System T
ype
to make sure it is set to match your
heating and cooling equipment (see page 17).
Fan does not
turn on when
heat is required
•
Check Function 3: Heating Fan Contr
ol
to make sure it is set to match
your heating equipment (see page 19).