42 69-1701
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.
69-1701.fm Page 42 Monday, March 8, 2004 12:40 PM
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