Fan Motor Circuit Of The Freezing Chamber; Refrigerator Fan Motor Circuit (None); Condensing Fan Motor Circuit (None); Damper Motor Circuit (None) - Midea HS-455LWEN-W1 Instruction Manual

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)
The reference voltage is 5V, RNTC is the resistance value of the sensor, R1 is R31\R32\R33 in
schematic diagram that is 5.1K

10.4Fan 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 FAN is more than 11V. If there's no voltage when the compressor is in
operation, fan motor or electric control panel can be replaced.

10.5Refrigerator fan motor circuit (None)

10.6Condensing fan motor circuit (None)

10.7Damper motor circuit (None)

10.8Resistance value of the sensor (R/T)

Tx(℃) R（KΩ） Tx(℃)
-30 33.81
31.85
-29
-28 30.01
28.29
-27
-26 26.68
R（KΩ） Tx(℃)
-15 14.31
13.55
-14
-13 12.83
12.16
-12
-11 11.52
R（KΩ） Tx(℃)
0 6.495 15
6.175
1 16
2 5.873 17
5.587
3 18
4 5.315 19
29
R（KΩ） Tx(℃) R（KΩ）
3.141 30 1.617
2.999
31
2.865 32 1.486
2.737 1.426
33
2.616 34 1.368
1.55