Refrigerators do not cool, compressors do not work, but very hot, what is the reason?
The temperature of the refrigerator is too high, the internal temperature has reached the set temperature, so it does not start
Use ammeter to measure compressor starting and running current is normal (starting current is about 5~8 times of running current), such as current normal overload protector action, overload protector is out of order and should be replaced. Otherwise, the compressor is out of order.
Use multimeter ohmmeter to measure whether the resistance of the PTC starter running Jack and the starting jack is normal (normal resistance is between 16~50 ohms), such as infinity or 0, the PTC starter is damaged and should be replaced.
For the refrigerator electronic control system, in the case of electricity, with a multimeter measuring AC voltage blocking main control board of the input voltage and the output voltage is normal, the screen to show whether the compressor work? Each sensor is normal or not? The contact normal? If the input voltage and output voltage is normal without the main control board a fault
Check the external power supply and the compressor input voltage
