Service manual

57Room Air Conditioner
Troubleshooting Guide
(℃)
(KΩ)
V
*15K
V
*8.1K
(℃) (KΩ)
V
*15K
V
*8.1K
(℃) (KΩ)
V
*15K
V
*8.1K
-20 147.69 0.46 0.26 32 11.0917 2.87 2.11 84 1.6417 4.51 4.16
-19 139.298 0.49 0.27 33 10.6341 2.93 2.16 85 1.5904 4.52 4.18
-18 131.436 0.51 0.29 34 10.1979 2.98 2.21 86 1.541 4.53 4.2
-17 124.067 0.54 0.31 35 9.7819 3.03 2.26 87 1.4933 4.55 4.22
-16 117.158 0.57 0.32 36 9.3851 3.08 2.32 88 1.4474 4.56 4.24
-15 110.677 0.6 0.34 37 9.0066 3.12 2.37 89 1.403 4.57 4.26
-14 104.594 0.63 0.36 38 8.6453 3.17 2.42 90 1.3603 4.58 4.28
-13 98.8834 0.66 0.38 39 8.3004 3.22 2.47 91 1.3191 4.6 4.3
-12 93.5199 0.69 0.4 40 7.9711 3.26 2.52 92 1.2793 4.61 4.32
-11 88.4804 0.72 0.42 41 7.6565 3.31 2.57 93 1.2409 4.62 4.34
-10 83.7433 0.76 0.44 42 7.3561 3.35 2.62 94 1.2038 4.63 4.35
-9 79.2888 0.8 0.46 43 7.069 3.4 2.67 95 1.1681 4.64 4.37
-8 75.0984 0.83 0.49 44 6.7946 3.44 2.72 96 1.1335 4.65 4.39
-7 71.1548 0.87 0.51 45 6.5323 3.48 2.77 97 1.1002 4.66 4.4
-6 67.4422 0.91 0.54 46 6.2815 3.52 2.82 98 1.068 4.67 4.42
-5 63.9457 0.95 0.56 47 6.0416 3.56 2.86 99 1.0369 4.68 4.43
-4 60.6514 0.99 0.59 48 5.8121 3.6 2.91 100 1.0068 4.69 4.45
-3 57.5465 1.03 0.62 49 5.5925 3.64 2.96 101 0.9778 4.69 4.46
-2 54.6191 1.08 0.65 50 5.3823 3.68 3 102 0.9497 4.7 4.48
-1 51.858 1.12 0.68 51 5.1804 3.72 3.05 103 0.9225 4.71 4.49
0 49.2528 1.17 0.71 52 4.9872 3.75 3.09 104 0.8963 4.72 4.5
1 46.7926 1.21 0.74 53 4.8023 3.79 3.14 105 0.871 4.73 4.51
2 44.47 1.26 0.77 54 4.6252 3.82 3.18 106 0.848 4.73 4.53
3 42.2765 1.31 0.8 55 4.4556 3.85 3.23 107 0.825 4.74 4.54
4 40.2043 1.36 0.84 56 4.2931 3.89 3.27 108 0.802 4.75 4.55
5 38.246 1.41 0.87 57 4.1374 3.92 3.31 109 0.779 4.75 4.56
6 36.3946 1.46 0.91 58 3.9882 3.95 3.35 110 0.758 4.76 4.57
7 34.6438 1.51 0.95 59 3.8452 3.98 3.39 111 0.737 4.77 4.58
8 32.9875 1.56 0.99 60 3.708 4.01 3.43 112 0.717 4.77 4.59
9 31.42 1.62 1.02 61 3.5765 4.04 3.47 113 0.697 4.78 4.6
10 29.9362 1.67 1.06 62 3.4503 4.06 3.51 114 0.678 4.78 4.61
11 28.531 1.72 1.11 63 3.3293 4.09 3.54 115 0.66 4.79 4.62
12 27.2 1.78 1.15 64 3.2131 4.12 3.58 116 0.642 4.79 4.63
13 25.9387 1.83 1.19 65 3.1016 4.14 3.62 117 0.625 4.8 4.64
14 24.7432 1.89 1.23 66 2.9945 4.17 3.65 118 0.608 4.81 4.65
15 23.6097 1.94 1.28 67 2.8917 4.19 3.68 119 0.592 4.81 4.66
16 22.5345 2 1.32 68 2.7929 4.22 3.72 120 0.577 4.81 4.67
17 21.5144 2.05 1.37 69 2.698 4.24 3.75 121 0.561 4.82 4.68
18 20.5463 2.11 1.41 70 2.6069 4.26 3.78 122 0.547 4.82 4.68
19 19.6272 2.17 1.46 71 2.5193 4.28 3.81 123 0.532 4.83 4.69
20 18.7545 2.22 1.51 72 2.435 4.3 3.84 124 0.519 4.83 4.7
21 17.9254 2.28 1.56 73 2.3541 4.32 3.87 125 0.505 4.84 4.71
22 17.1376 2.33 1.6 74 2.2762 4.34 3.9 126 0.492 4.84 4.71
23 16.3889 2.39 1.65 75 2.2013 4.36 3.93 127 0.48 4.85 4.72
24 15.677 2.44 1.7 76 2.1292 4.38 3.96 128 0.467 4.85 4.73
25 15 2.5 1.75 77 2.0599 4.4 3.99 129 0.456 4.85 4.73
26 14.356 2.55 1.8 78 1.9932 4.41 4.01 130 0.444 4.86 4.74
27 13.7431 2.61 1.85 79 1.9289 4.43 4.04 131 0.433 4.86 4.75
28 13.1598 2.66 1.91 80 1.8671 4.45 4.06 132 0.422 4.86 4.75
29 12.6045 2.72 1.96 81 1.8076 4.46 4.09 133 0.412 4.87 4.76
30 12.0756 2.77 2.01 82 1.7502 4.48 4.11 134 0.401 4.87 4.76
31 11.5718 2.82 2.06 83 1.6949 4.49 4.13 135 0.391 4.87 4.77
Temp.
Value of
resistanc
e
V oltage Voltage
Temp.
Value of
resistance
Voltage Voltage
Voltage
Voltage
Temp.
Value of
resistance
Voltage table of 15K sensor resistance value
Remark: The above voltage value is the power supply voltage 5V, the divider resistance are 15K and8.1K.