Frequently Asked Questions and Answers
Q:Some or all keys on the display do not work; why?
A: Thermostat screen is locked. See Advanced Setting section to unlock keys on the screen.
Q:Backlighting seems dim; is it designed to be dim?
A:In models that use batteries for power, install fresh AAA alkaline batteries.
Q:Thermostat is asking for heating or cooling to come on (screen shows “Heat On” or “Cool On” in display) but there is no heating or cooling running.
A:Call your local heating and/or cooling contractor to check your heating and/or cooling system.
Q:Under the Fan on the screen, Auto and On or Auto and Circ are shown. What does this mean?
A:The Fan is programmed for either On or Circulate. See the Fan Schedule section for more information.
Q:Why doesn’t the thermostat respond when I touch the keys?
A:Check to determine if the screen is in the Locked or Clean mode. See Screen Locked or Cleaning Thermostat Screen sections.
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