How to identify the advantages and disadvantages of the refrigerator?

In the identification, look at the appearance first, pay attention to the color of the styling, and whether the paint film is peeled off and uneven. Connect the power supply and adjust the temperature. Adjust to second gear. Let the automatic controller stop automatically, open multiple times, check the temperature control device is reliable and effective, and then check the compressor is running properly and the noise size, then adjust the knob to the "non stop" position, half an hour Frost water can appear in the evaporator. Check whether the evaporator wall is even and the heat is the same. Finally, check whether the door is closed and flexible.