Haier refrigerator model BCD-220STCV lamp does not cool, does not work and has no sound. What is the reason and how to deal with it?

You can see a thermostat in the refrigerator. In hot summer, you can set the thermostat to the second position, so that the refrigerator won't freeze. From the weather to the coldest winter in winter, you should set the thermostat to five to six so that the refrigerator can start normally in winter. The temperature can be adjusted to three or four degrees in other weather, but not to seven degrees in winter. That's forced refrigeration, even the refrigerator will freeze. I suggest you shift to the sixth gear, but you don't need to cool it for the time being. Please adopt it.