User Manual
 Page 12 
Operating
Instructions
(FAN SPEED) Button
Used to select the Fan Speed in four steps 
- Auto, Low, Med or High. Each time the 
button is pressed, the fan speed mode is 
changed. On Dry mode,the fan operates 
on Low speed automatically.
(EC0) Button
This function is available on COOL, DRY, 
AUTO (only AUTO-COOL and AUTO-FAN) 
modes. The fan will continue to run for 3 
minutes after the compressor shuts off.
The fan then cycles on for 2 minutes 
at 10 minute intervals until the room 
temperature is above the set temperature, 
at which time the compressor turns back 
on and Cooling resumes.
(SLEEP) Button
In this mode the selected temperature will 
increase by 2°F/1°C 30 minutes after the 
mode is selected. The temperature will 
then increase by another 2°F/1°C after an 
additional 30 minutes.
This new temperature will be maintained 
for 7 hours before it returns to the 
originally selected temperature.
This ends the Sleep mode and the unit 
will continue to operate as originally 
programmed. The Sleep mode program can 
be cancelled at any time during operation 
by again pressing the Sleep button.
(TIMER) Button
•  When the unit is on or off, first press the 
Timer button. The TIMER ON indicator 
light illuminate indicating the Auto Start 
program has initiated.
•  When the time of TIMER ON is displayed, 
press the Timer button again. The TIMER 
OFF indicator light illuminates. It indicates 
the Auto Stop program is initiated.
•  Press or hold either UP (
) or DOWN 
( ) button to change the Auto time 
by 0.5 hour increments, up to 10 hours, 
then at 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. (when 
the unit is off, there is no display.)
•  Turning the unit ON or OFF at any time 
or adjusting the timer setting to 0.0 will 
cancel the Auto Start/Stop timed program.
(CHECK FILTER) Button
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.
LED Display:
Shows 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 it back in. If 
error repeats, call for service.
  NOTE: In Fan Only mode, it will 
display “LO” or “HI.”
ES -  Evaporator temperature sensor error 
- Unplug the unit and plug it back in. If 
error repeats, call for service.
HS - Electric heating sensor error - Unplug 
the unit and plug it back in. If error 
repeats, call for service.
Display










