Samsung rb195ab** xaa Troubleshooting Manual page 3

Ranges of ambient temp.
Above 66 ℉
61 ℉ ~ 65 ℉
Below 60 ℉
Defrost – The sensor voltage tells the Main PCB to turn off the
o
Defrost Heater At 50 in Freezer, 63
Compartment Temp – The sensor controls fan/compressor on/
off to maintain temp
Ice Production – harvests when the I/M sensor reads 1.5 de-
grees for 5 minutes, Flex Tray Only.
If the door is opened during that 5 minutes harvest is delayed.
Ambient Sensor
Fan Speeds – Below 60 degrees condenser fan is off
Defrost Timing – The warmer the room the more often
the defrost
Temperature/Resistance/Voltage Chart for Samsung Refrigerators Sensors
Temp. (Ω) Volts
-29.2°F 64227 4.326
-27.4°F 61012 4.296
-25.6°F 57977 4.264
-23.8°F 55112 4.232
-22.0°F 52406 4.199
-20.2°F 49848 4.165
-18.4°F 47431 4.129
-16.6°F 45146 4.093
-14.8°F 42984 4.056
-13.0°F 40938 4.018
-11.2°F 39002 3.98
-9.4°F 37169 3.94
-7.6°F 35433 3.899
-5.8°F 33788 3.858
-4.0°F 32230 3.816
-2.2°F 30752 3.773
-0.4°F 29350 3.729
# tsRB195AB RevB 03/30/2011
Condenser Fan
Delay function
Sensors
o
in Fridge
Temp. (Ω)
1.4°F 28021
3.2°F 26760
5.0°F 25562
6.8°F 24425
8.6°F 23345
10.4°F 22320
12.2°F 21345
14.0°F 20418
15.8°F 19537
17.6°F 18698
19.4°F 17901
21.2°F 17142
23.0°F 16419
24.8°F 15731
26.6°F 15076
28.4°F 14452
30.2°F 13857
Operation
Condenser-Fan is ON as soon as the
compressor is on.
Condenser-Fan is ON with 5 minutes
delay from the compressor on.
Condenser-Fan is OFF regardless of
the compressor operation
How to Check Sensor Resistances Accurately
Make ice slurry. To do this, fill a cup with ice
(preferably crushed), then add water and a teaspoon
of salt to make a slush. Mix thoroughly and allow to sit
for 2 to 3 minutes. This will give you a 32*F refer-
ence. Now, lower the sensor into the mixture and
leave for about 1 minute, then check the resistance. It
should be very close to 13,300 ohms. Before reinstall-
ing the sensor, be sure to rinse it with fresh water and
dry it.
Volts Temp. (Ω)
3.685 32.0°F 13290
3.64 33.8°F 12749
3.594 35.6 °F 12233
3.548 37.4 °F 11741
3.501 39.2 °F 11271
3.453 41.0°F 10823
3.405 42.8°F 10395
3.356 44.6°F 9986
3.307 46.4°F 9596
3.258 48.2°F 9223
3.208 50.0°F 8867
3.158 51.8°F 8526
3.107 53.6°F 8200
3.057 55.4°F 7888
3.006 57.2°F 7590
2.955 59.0°F 7305
2.904 60.8°F 7032
Volts Temp. (Ω)
2.853 62.6°F 6771
2.802 64.4°F 6521
2.751 66.2°F 6281
2.7 68.0°F 6052
2.649 69.8°F 5832
2.599 71.6°F 5621
2.548 75.2°F 5225
2.498 77.0°F 5000
2.449 78.8°F 4861
2.399 80.6°F 4690
2.35 86.0°F 4218
2.301 87.8°F 4072
2.253 89.6°F 3933
2.205 91.4°F 3799
2.158 95.0°F 3547
2.111 96.8°F 3428
2.064 100.4°F 3204
Volts
2.019
1.974
1.929
1.885
1.842
1.799
1.716
1.675
1.636
1.596
1.483
1.447
1.412
1.377
1.309
1.277
1.213
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