Temperature/Resistance/Voltage Chart for Samsung Refrigerators Sensors
Heat Release I/M Test Mode
Press and hold the ICE TEST S/W for at least 1.5sec, the
harvest function will start. If the ice maker Thermistor is be-
low 0 degrees the Ice maker heater turns on for about 2 min-
utes. If the temperature exceeds 0 degrees, ice maker heater
turns on for 30 seconds. After the ice maker heater turns on
for 30 seconds, the heater turns off and then Ice maker har-
vest motor turns on. The motor will rotate in right direction
for about 3 minutes, after this, water supply valve is turned
on, then the valve is turned off, the test mode is completed. If
the above operation is not carried out within 6 minutes, it will
go into a fault mode.
Heat Release Ice Production Explanation
38 minutes after the water fill is complete, the control
board will check the temperature of the eject Thermistor,
on the Ice Maker Head, if the Thermistor reads a tem-
perature lower than 18.5 degrees for more than 5 sec-
onds, then the ice production process is completed. The
Ice maker will harvest if the ice bucket is not sensed as
full. If a Fault Mode is detected with the Ice Maker op-
eration, the Ice Maker stops working for 3 hours. Which
means, the Ice Maker checks the operation every 3
hours until it works properly.
FREEZER TEMPERATURE CONTROL BY THE ICE MAKER
Interior Temperature of the freezer will be set to -14 degrees Fahrenheit until the ice bucket is full. When the ice
bucket is full, the freezer will maintain original set temperature. Also, whenever the ice is used, the freezer will
again set to -14 degrees Fahrenheit. Selecting "Ice Off” will allow the freezer to be controlled by the set tem-
perature. If water is not hooked up, the freezer will always be at –14 unless “Ice Off” is selected.
Temp. (
Ω
) Volts
Temp. (
Ω
) Volts
Temp. (
Ω
) Volts
Temp. (
Ω
) Volts
-29.2°F 64227 4.326
1.4°F 28021
3.685
32.0°F 13290 2.853
62.6°F 6771 2.019
-27.4°F 61012 4.296
3.2°F 26760 3.64
33.8°F 12749 2.802
64.4°F 6521 1.974
-25.6°F 57977 4.264
5.0°F 25562
3.594
35.6 °F 12233 2.751 66.2°F 6281 1.929
-23.8°F 55112 4.232
6.8°F 24425
3.548
37.4 °F 11741
2.7
68.0°F 6052 1.885
-22.0°F 52406 4.199
8.6°F 23345
3.501
39.2 °F 11271 2.649 69.8°F 5832 1.842
-20.2°F 49848 4.165
10.4°F 22320 3.453
41.0°F 10823 2.599
71.6°F 5621 1.799
-18.4°F 47431 4.129
12.2°F 21345 3.405
42.8°F 10395 2.548
75.2°F 5225 1.716
-16.6°F 45146 4.093
14.0°F 20418 3.356
44.6°F 9986 2.498
77.0°F 5000 1.675
-14.8°F 42984 4.056
15.8°F 19537 3.307
46.4°F 9596 2.449
78.8°F 4861 1.636
-13.0°F 40938 4.018
17.6°F 18698 3.258
48.2°F 9223 2.399
80.6°F 4690 1.596
-11.2°F 39002 3.98
19.4°F 17901 3.208
50.0°F 8867 2.35
86.0°F 4218 1.483
-9.4°F 37169 3.94
21.2°F 17142 3.158
51.8°F 8526 2.301
87.8°F 4072 1.447
-7.6°F 35433 3.899
23.0°F 16419 3.107
53.6°F 8200 2.253
89.6°F 3933 1.412
-5.8°F 33788 3.858
24.8°F 15731 3.057
55.4°F 7888 2.205
91.4°F 3799 1.377
-4.0°F 32230 3.816
26.6°F 15076 3.006
57.2°F 7590 2.158
95.0°F 3547 1.309
-2.2°F 30752 3.773
28.4°F 14452 2.955
59.0°F 7305 2.111
96.8°F 3428 1.277
-0.4°F 29350 3.729
30.2°F 13857 2.904
60.8°F 7032 2.064
100.4°F 3204 1.213
Heat Release Ice Makers
DC FAN MOTORS
Brushless DC Fan motors are used to save energy. The fans operate at two speeds. Fan speed information is read by
the Main PCB. If the fan speed exceeds 600 RPM or the speed is too slow, or stopped the fan drive circuit is disabled,
After 10 seconds the circuit tries again with 3 seconds of DC voltage. If the fan continues this activity for 5 cycles, 10
seconds off 3 seconds on, the fan drive circuit is disabled for 10 minutes.
TO TEST THE FAN CIRCUIT VOLTAGE.
Power off and back on to check the DC voltage to the motor, wait from 10 to 60 seconds for the fan voltage to kick in,
and then check fan voltage, the average reading is 9 VDC. If you get 3 seconds of voltage every 10 seconds for the 5
fan power up cycles, then the Main PCB is good.
NOTE:
You may need to put unit in FORCED FREEZE mode to activate the fans/compressor.
If the fan blade is blocked by ice, then defrost and check the motor again, after removing power from the unit.
If the evaporator is ice blocked and thus blocking the air flow, the fan will over RPM and will be stopped. Remove ice
and check the motor again. If everything is clear around the fan blade then the motor would be at fault. Continuous fan
errors will be displayed on the front panel display.
PLEASE NOTE:
The door switches control the evaporator fan mo-
tors. Have them closed to test the motors. Delay time 10 – 60 seconds.
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