Service and Parts Manual (2019, 2020, 2021, 2022)
123 PB
COMPONENTS TESTING 
9-18k Ducted Control Board 
1 2 3 4
5
6
1112
810 9
7
13
14
17
16
15
18
19
NO. NO.Description Description
1  Heat   11   Disp  
2  12 Output1   Output2  
3  13 Step Motor   Wired.  
4  14 DC Fan   Wi-Fi 
5  15 Swing   Reserved  
6  Pump  16  Humidity  
7  17 
L, N Power Input 
Water  Level Switch  
8  Out   18 
Coil Temp . Sensor  
9  Nano   19  Ambient  Temp . Sensor
10 
Disp  
Figure 603










