33
Service Manual
Technical Information
d) In fan mode, fan LED is bright; 
f) When the fan speed is low, medium and high, the LED for low, medium and high fan speed will bright respectively. 
When it
’s the auto wind, the auto wind LED will be bright. 
When timer is set, the timer LED will be bright. 
Temp erature Setting 
You desired temperature can be set by “UP/DOWN” button and the setting temperature will be displayed on the dual 
8
nixietube; If press “UP/DOWN” button successive
ly, the setting temperature will be decreased successively and quickly, 
hile, the buzzer will give out sound successively. 
Dual 8 nixietube can switch the Centigrade and Fahrenheit. They can be switched by pressing “UP” and “DOWN” 
aneously for 3s. 
tion Setting for Buttons 
ON/OFF button is used for turning on or turning off the unit. In off status, the unit will be turned on after pressing 
button; in on status, the unit will be turned off after  pressing this button. 
SWING button  is used for turning on/off the  swing.  At the time of swinging, swing will  be turned  off by pressing 
SWING button. When the unit isn’t 
swing, swing will be turned on by pressing SWING button. 
FANSPEED button is used for adjusting the fan speed and it will circulate according to AUTO, FAN, FANL, FANM, 
ANH, and AUTO.   
 and DOWM button is used for increasing/decreasing temperature and timer. 
MODE button is used for switching the mode.Cooling only unit won’t receive the signal of HEAT button and it will 
 
TO, COOL,  DRY,FAN.  
Energy saving mode is only controlled by the energy saving  button on remote controller, which can’t be selected by
 
the MODE button on control panel. 
g) Sleep function is only controlled by the sleep button on remote controlle
r. There’s no sleep button on control panel. 
 
11 Protection Function 
11.1 Antifreezing  protection 
When antifreezing protection is detected, compressor and ou
tdoor fan will stop running, while indoor fan will run at the 
fan  speed. After  antifreezing  protection  is  released  and  it’s  delayed  for  3mins,  the  unit  will  resume original 
11.2 Malfunction Detection for Temperature Sensor  
Ambient temperature sensor is open circuit or short circuit: dual 8 nixie tube will displays F1. Cooling LED will go out 
for 3s and blink once. It 
will bright for 0.5s and go out for 0.5 when blinking. 
b) Indoor tube temperature sensor is open circuit or short circuit: dual 8 ni
xie tube will displays F2. Cooling LED will go 
ice. It will bright for 0.5s and go out for 0.5 when blinking. 
When  many  kinds  of  malfunction  happen  simultaneously,  the  malfunction  protection  codes  will  be  displayed 
In dry mode, dry LED is bright