Refrigerator should be in operation and negative temperature (below 0 ° C), with the multimeter in the range of 10 to 20 VDC (direct current), make measurement:
Pinos 7:05 (red) - defrost sensor must be above 1.5V
Pins 8 and 9 (brown) - temperature sensor must be above 1.5 V.
If the product is at a temperature below 0 ° C in the freezer and the measured voltage exceeds 1.5V DC the sensor is normal. If the freezer temperature is below 0 ° C, and the voltage is less than 1.5V DC sensor is defective.
