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4. Troubleshooting
4. Troubleshooting
Issue
Sensor reads 1kΩ or less
Sensor or wires are shorted together or to ground
Sensor reads 13kΩ or more
Sensor or wires have been damaged and are open
Erratic readings
Loose wire connection or possibly moisture on the wires/sensor
PAC-USSEN001-FM-1
5. Setting Indoor Units
5. Setting Indoor Units
When the Sensor is connected to the indoor unit and room temperature detection position is changed, reset
the setting of "Set temp 4-deg. Up" in the heating mode as shown below:
• K control models
DIP switch Nos 1-6 on the control PCB of the indoor unit
• M-NET control models
DIP switch Nos 3-8 on the control PCB of the indoor unit
• A control models
Refer to A-control air conditioner Service Technical Guide
6. Thermistor Calibration Table
Temperature
Resistance
[C °]
[Ω]
-20
42586.59
-19
40350.58
-18
38248.13
-17
36270.38
-16
34409.10
-15
32656.66
-14
31005.98
-13
29450.47
-12
27984.03
-11
26600.98
-10
25296.02
-9
24064.24
6. Thermistor Calibration Table (continued)
Temperature
Resistance
Specifications are subject to change without notice.
[C °]
[Ω]
50
2186.49
51
2115.25
52
2046.74
53
1980.85
54
1917.47
55
1856.48
56
1797.79
57
1741.29
58
1686.89
59
1634.50
60
1584.04
61
1535.43
62
1488.58
63
1443.43
64
1399.91
65
1357.94
Specifications are subject to change without notice.
PAC-USSEN001-FM-1
Possible Cause
Temperature
Resistance
[C °]
-8
22901.06
-7
21802.22
-6
20763.75
-5
19781.95
-4
18853.35
-3
17974.74
-2
17143.10
-1
16355.64
0
15609.72
1
14902.90
2
14232.87
3
13597.50
9
© 2018 Mitsubishi Electric US, Inc.
Temperature
Resistance
10
[C °]
66
1317.47
67
1278.43
68
1240.77
69
1204.42
70
1169.35
71
1135.49
72
1102.80
73
1071.23
74
1040.74
75
1011.28
76
982.82
77
955.32
78
928.74
79
903.04
80
878.19
6. Thermistor Calibration Table (continued)
Temperature
[C °]
4
5
6
7
8
9
10
11
12
13
14
[Ω]
15
16
17
18
19
20
21
22
23
24
25
26
This device is designed and intended for use in the residential,
[Ω]
Please be sure to put the installer's contact address/telephone number on
MEUS DOC# CE-18001-L001, Ver. 2, February 2021
Resistance
Temperature
[Ω]
12994.77
12422.81
11879.86
11364.26
10874.47
10409.03
9966.60
9545.90
9145.71
8764.93
8402.49
8057.40
7728.72
7415.58
7117.14
6832.64
6561.34
6302.55
6055.61
5819.92
5594.90
5380.00
5174.71
commercial and light-industrial environment.
this manual before handing it to the customer.
MITSUBISHI ELECTRIC US, INC.
www.mitsubishielectric-usa.com
Toll Free: 800-433-4822
Resistance
[C °]
[Ω]
27
4978.54
28
4791.04
29
4611.78
30
4440.34
31
4276.33
32
4119.40
33
3969.20
34
3825.40
35
3687.69
36
3555.79
37
3429.40
38
3308.28
39
3192.17
40
3080.84
41
2974.07
42
2871.63
43
2773.34
44
2679.01
45
2588.44
46
2501.48
47
2417.95
48
2337.71
49
2260.60
© 2021 Mitsubishi Electric US, Inc.
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