Step 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Output for outdoor unit 
Lamps
RED YELLOW
Indoor
Fan motor
Louver
OFF 
Compressor 
Reverse Valve 
Outdoor Fan Motor
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF 
OFF  OPEN 
ON  D OFF Flickering
OFF  H  OFF 
ON  ON  L  CLOSE 
ON OFF  D  OFF 
OFF UL OFF 
OFF OFF  H  OFF 
OFF  OFF M OFF 
OFF  OFF  L  OFF 
OFF  ON  OFF  OFF 
OFF  OFF  OFF  OFF 
ON OFF OFF  OFF 
OFF  OFF  OFF  OFF 
ON  ON  OFF  OFF 
ON ON  OFF  OFF 
ON  OFF  OFF  OFF 
OFF  OFF  OFF  OFF 
OFF OFF  OFF  OFF 
OFF  OFF  OFF  OFF 
ON  OFF  OFF  OFF 
OFF ON  OFF  OFF 
ON  ON  OFF  OFF 
23
OFF  OFF  OFF  OFF  OFF
(Back to step 1)
ON 
1
2 
3
4
1
2
3
: 7˚C      Room temp.      42˚C          ON     
: 7˚C     (Room temp.) or (Room temp.)      42˚C                       OFF  
: –2˚C     Pipe temp.     42˚C          ON
: –2˚C     (Pipe temp.) or (Pipe temp.)      42˚C          OFF
: 0.1V     (P57 input voltage)      0.45V                                                                 ON
: 0.1V     (P57 input voltage) or (P57 input voltage      0.45V)         OFF
4
: When Power on start is effective, Timer LED(yellow) is ON.