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Troubleshooting
4-4 Case study for trouble shoots (cont.)
4-4-16 Case study – Temperature sensor open/short
▪ Disconnection or breakdown of relevant sensor.
Check sensor connector
problem?
Measure resistance
Sensor resistance
Normal
Replace PBA.
Name
Ambient temp. sensor
Cond_out temp. sensor
EVI in/out temp. sensor
Liquid tube temp. sensor
Suction temp. sensor
Discharge temp. sensor
Comp. top temp. sensor
Samsung Electronics
No
No
Type
Error
103AT
E221
103AT
E231
103AT
E321,322
103AT
E311
103AT
E308,323
204CT
E251,257
204CT
E276,277
Yes
Yes
103 AT
Temp.
Resistance
(℃)
(kΩ)
70
2.2
60
3.0
50
4.2
40
5.8
30
8.3
21
12.1
10
18.0
0
27.3
-10
43.0
Fix
Replace sensor.
204 CT
Temp.
Resistance
(℃)
(kΩ)
130
8.9
120
11.2
100
18.5
80
32
60
59
25
200
20
242
10
362
0
553
174
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