ERROR CODES AND TROUBLESHOOTING
PAGE 33
ENGLISH
Error Codes and Troubleshooting
Check This First - Indoor Unit
Wiring Diagram Reference
Sensor Resistance Table
°F °C
Normal (KΩ
10K
SENSORS
23K
SENSORS
50K
SENSORS
-0.4 -18 75.44 235.90 5494.21
5.0 -15 64.30 196.61 4558.19
10.4 -12 54.99 164.40 3795.39
14.0 -10 49.62 146.15 3365.73
21.2 -6 40.58 115.95 2658.81
24.8 -4 36.77 103.46 2368.32
32.0 0 30.30 82.69 1887.00
35.6 2 27.55 74.07 1687.81
41.0 5 23.95 62.94 1431.28
44.6 7 21.84 56.57 1284.36
50.0 10 19.06 48.31 1094.32
55.4 13 16.68 41.40 934.94
59.0 15 15.28 37.41 843.05
64.4 18 13.42 32.22 723.41
69.8 21 11.81 27.83 622.32
75.2 24 10.42 24.11 536.65
77.0 25 10.00 23.00 511.08
80.6 27 9.21 20.95 464.05
86.0 30 8.16 18.25 402.24
89.6 32 7.54 16.67 366.13
95.0 35 6.70 14.59 318.52
100.4 38 5.97 12.79 277.70
REFERENCE INFORMATION
PAGE 43
Indoor Board Diagram
VHA AW12ES2VHA AW18ES2VHA AW24E
R:Red
●
W:White
Y:Yellow
Y/G:Yellow/Green
B:Black
BR:Brown
BL:Blue
PIPING TEMP.SENSOR(10K)
●
AMBIENT TEMP.SENSOR(10K)
POWER BUTTON
Notes:
1.The dotted parts are optiona
●
l.
2.The two pins of CN51 should be shorted,
when the J6 is cuted off.
M
FUSE1
CN7
T3.15A/250VAC
TO OUTDOOR UNIT
1
(N)
(C)
3
(L)
2
W
B
Y/G
GND
CN6
R
(L)
CN21
N
COMM
CN51
CN9
CN17
CN23'
CN35
CN34
ROOM CARD
CN5
DC FAN MOTOR
CN11'
DISPLAY BOARD
Model selection:
WIRED CONTROLLER
UP-DOWN STEPMOTOR
LEFT & RIGHT STEPMOTOR
WIFI
CN14
Notes:Before replacing the board,it
is necessary to ensure that the
machine is matched with the board
code
CN56
HUMAN SENSOR
CN38
CN27'
Y/G
GND
WK-B
EVAPORATOR
ELECTRIC
CONTROL BOX
COVER
GND
Y/G
RJ45
Diagnostic
port
CN5
CN1
CN2
SW1
OFF OFF OFF OFF
CN3
CN4
CN2
CN6
CN4
CN3
CENTRALIZED CONTROLLER
SW2
OFF
OFF
OFF OFF OFF
OFF
OFF OFF
CN36
model-23 code - BM1 - 1 off 2 off
model-26 code - BM1 - 1 off 2 on
2 off
30K
30K
36K
36K
model-33 code - BM1 - 1 on
model-35 code - BM1 - 1 on 2 on
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