What are the temperature setting ranges for heating and cooling on the T6 Pro?
The heating setpoint range is 40°F to 90°F (4.5°C to 32.0°C), and the cooling setpoint range is 50°F to 99°F (10.0°C to 37.0°C). If temperature settings do not change, verify that you are within these acceptable ranges. (Page 13)
From the official Honeywell Home T6 Pro Th6320u2008 manual, page 13
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