atwood Air Conditioners (non-ducted AC-1351, AC-1501) - Manual (Page 15)

AC IOM 3/01/2013 rev 1 15
OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT (cont)
7. On/Off timer setting
 When the system is on, setting the timer will turn off the unit after the programmed hours were
counted down. When the system is off, setting the timer will turn on the unit after the programmed
hours were counted down.
 Press TIMER
button once to activate on/off timer programming mode. Timer LED and temperature
display area flash for 3 seconds showing the number of count down hours left. Thereafter, Timer LED
flashes and temperature display area shows the timer setting.
 Press
TIMER
again to set the timer from 1 to 24 hours in 1 hour incremented in a round robin pattern.
 Hold down this key will change the timer setting automatically every half second.
 Press TIMER
until the display shows
“—“ will cancel the timer setting.
 Should there be no further button press, system will exit from on timer programming mode
automatically.
 Timer LED will light up if on/off timer is set.
 Press ON/OFF to start or stop the air conditioner will also cancel the timer setting.
8. Error code display
 Should there be any fault happen with the main board, the relevant error code will be shown on the
temperature display area.
 If there is multiple faults happen at the same time, the error code will be shown one after another.
 System will alternate the display of error code and room temperature.
 Depends on the model of main board, the error codes available are:
Fault Error code
Room sensor failure E1
Indoor coil sensor failure E2
Outdoor coil sensor failure E3
Insufficient of refrigerant E4
Compressor overload E5
Not used E6
Not used E7
Outdoor air sensor failure E8
Wall pad room sensor failure E9