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FREQUENTLY ASKED QUESTIONS AND ANSWERS
Q: Some or all keys on the display do not work; why?
A: Comfort Control screen is locked. See “Advanced Settings” on page 34 to unlock keys on the
screen.
Q: Comfort Control 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 “Fan Schedule” on page 19 for more
information.
Q: Why doesn’t the Comfort Control respond when I touch the keys?
A: Check to determine if the screen is in the Locked or Clean mode. See “Screen Locked” on
page 24 or “Cleaning Your Comfort Control Screen” on page 21.
Q: The fan is set to On but is not running; why?
A: The The Trane Proprietary Humidity Control disables continuous fan mode when the indoor
humidity is above the dehumidification setpoint. See “Trane Proprietary Humidity Control” on
page 28 for additional information.