Troubleshooting
Samsung Electronics 247
4-4-16 Case study – Temperature sensor open/short
▪ Disconnection or breakdown of relevant sensor.
Replace PBA.
Fix
Yes
No
Check sensor connector
problem?
Replace sensor.
Yes
No
Sensor resistance
Normal
Measure resistance
Name Type Error
Ambient temp. sensor 103AT E221
Cond_out temp. sensor 103AT E231
EVI in/out temp. sensor 103AT E321,322
Liquid tube temp. sensor 103AT E311
Suction temp. sensor 103AT E308,323
Discharge temp. sensor 204CT E251,257
Comp. top temp. sensor 204CT E276,277
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
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
4-4 Case study for trouble shoots (cont.)
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