EdgeStar WTC12001W Owner's Manual - Page 13

 Press or hold the Up or Down to change the Auto Time by ½ hour increments up to 10 hours or 1 hour increments up to 24 hours. The control will count down the time remaining until start.  The selected time will register in 5 seconds and the system will automatically revert back to display the previous temperature setting or room temperature when the unit is on. (NOTE-when the unit is off there is no display) To Check Filter Feature: This feature is a reminder to clean the Air Filter for more efficient operation. The LED light will illuminate after 250 hours of operation. To reset after cleaning the filter press the Check Filter button and the light will go off. Digital Display: Displays the set temperature in "C" or "F" and the Auto-Timer settings. While on Fan only mode it shows the room temperature. Error Codes AS- Room temperature sensor error  Unplug the unit and plug back in.  If error repeats call for service.  NOTE- In Fan only mode it will display "LO" or "HI". - Evaporator temperature sensor error  Unplug the unit and plug back in.  If error repeats, call for service. HS-Electric Heating sensor error  Unplug the unit and plug back in.  If error repeats, call for service. 9