What is the reason why the refrigerator doesn't hum and cool? Chengdu refrigerator maintenance

1. See if the refrigerator compressor works. If not, the compressor and its accessories will definitely not be inspected. 2. If the compressor of the machine is not cooled, touch the outside of the refrigerator to see if it is hot. If there is no heat or the heat is very low, it is short of freon and needs to be added. 3. If the battery valve with battery valve is broken or does not work, it will not be cooled. 4. If it is a machine with temperature display, there is another possibility, that is, the temperature sensor is broken or the motherboard is lit, which just means that the power supply is still on and the pipeline of the refrigerator is leaking fluorine. You need to find a maintenance person to check the leakage, repair the welding and add fluoride again. Suggested treatment: 1. If the thermostat is broken, turn the thermostat in the refrigerator to a higher gear, and turn on the switch if there is an auxiliary switch for winter temperature. 2. If the switch doesn't work, it means that there is something wrong with the switch or the auxiliary electric heater is damaged, and the electric heater should be updated. 3. Whether the power plug of the refrigerator is plugged in, whether the power socket has electricity, whether the power circuit breaker is disconnected, etc. 4. Check whether the door light of the refrigerator is on, so as to determine whether the refrigerator is electrified. Check whether the thermostat is in the working position. The thermostat has a gear, and the compressor will not work if it is in gear.