Service Manual_2017-V1
32
The characteristic that resistance value reduces as the temperature increases is deemed to have
negative slope or negative temperature coefficient (NTC), and such thermistor is called as NTC
thermistor. The resistance value changes sensitively with temperature and typically changes 7% ~ 3% per
degree centigrade. Sensor used in the refrigerator is NTC thermistor.
There is following computing formula for the sensor: Sampling voltage / reference voltage =
R1 / (RNTC + R1)
AD value / reference AD value = R1 / (RNTC + R1)
10.4 Fan motor circuit of the freezing chamber
The fan in the freezing chamber is running when the compressor is operating. Check 12V and FAN to see
if there is a voltage of 12V. When in normal operation, the fan is in low level and the voltage between 12V
and FA
N is more than 11V. If there’s no voltage when the compressor is in operation, fan motor or electric
control panel can be replaced.
10.5 Refrigerator fan motor circuit (None)
10.6 Condenser fan motor circuit(None)
10.7 Damper motor circuit(None)
10.8 Sensor resistance(R/T)
Tx(
℃
)
R
（
K
Ω
）
Tx(
℃
)
R
（
K
Ω
）
Tx(
℃
)
R
（
K
Ω
）
Tx(
℃
)
R
（
K
Ω
）
Tx(
℃
)
R
（
K
Ω
）
-30
33.81
-15
14.31
0
6.495
15
3.141
30
1.617
-29
31.85
-14
13.55
1
6.175
16
2.999
31
1.55
-28
30.01
-13
12.83
2
5.873
17
2.865
32
1.486
-27
28.29
-12
12.16
3
5.587
18
2.737
33
1.426
-26
26.68
-11
11.52
4
5.315
19
2.616
34
1.368
Summary of Contents for 22031020000125
Page 13: ...Service Manual_2017 V1 13 4 Terms 4 1 Definition of model None 4 2 Location of nameplate None...
Page 19: ...Service Manual_2017 V1 19 7 2 Circulating route of cooling air...
Page 34: ...Service Manual_2017 V1 34 11 Troubleshooting Method 11 1 No cooling Air cooling Electronic...
Page 35: ...Service Manual_2017 V1 35 11 2 No working of compressor...
Page 37: ...Service Manual_2017 V1 37 11 5 Light is not on...
