Why is the supermarket freezer not cooling? Do you have any troubleshooting methods?

Why is the supermarket freezer not cooling? Do you have any troubleshooting methods?

There are several main reasons why supermarket refrigerators do not refrigerate:

1. Power supply problem. If the power plug or socket of the refrigerator is damaged, or the voltage is unstable, the refrigerator will not work properly. At this time, we need to check whether the power supply has electricity, or replace the plug or socket to ensure normal power supply.

2. Compressor problem. The compressor is the core component of the refrigerator. It is responsible for compressing and circulating the refrigerant to achieve the refrigeration effect. If the compressor is damaged or does not work properly, the refrigerator will not refrigerate. At this time, we can listen to whether the compressor has a "buzzing" sound. If there is no sound, it means that the compressor is not working and needs to be repaired by professional maintenance personnel.

3. Refrigerant problem. Refrigerant is a special liquid that evaporates at high temperature and liquefies at low temperature, thereby taking away heat and achieving a refrigeration effect. If the refrigerant leaks or is insufficient, the refrigerator will not refrigerate. At this time, we can unplug the power supply and listen carefully to the sound of the liquid flowing in the copper tube. If there is no sound, it means that the refrigerant has leaked or is insufficient. Professional maintenance personnel need to add refrigerant and find the leaking part for welding.

4. Evaporator problem. The evaporator is a metal pipe that is responsible for changing the refrigerant from liquid to gas and taking away the heat. If the evaporator is frosted too much or damaged, it will affect the cooling effect. At this time, we need to clean the frost on the evaporator regularly and check whether there are holes or loose interfaces in the evaporator.

5. Fan problem. The fan is an electric device that is responsible for blowing the cold air generated by the evaporator to the entire refrigerator and keeping the air circulating. If the fan is damaged or blocked, the cold air cannot be evenly distributed and the local temperature is too high or too low. At this time, we need to check whether the fan is working properly and clean the dust or debris on the fan.

6. Thermostat problem. The thermostat is an electronic device that is responsible for controlling the switch of the compressor and fan according to the temperature we set and maintaining a constant temperature. If the thermostat is damaged or set incorrectly, it will cause the temperature to be too high or too low and affect the cooling effect. At this time, we need to check whether the thermostat is working properly and adjust the appropriate temperature according to the season and type of food.

There are several solutions to the problem of refrigerator failure:

1. Check the power supply. If the failure is caused by power supply problems, we can replace the plug or socket, or use a voltage stabilizer to ensure normal power supply.

2. Contact after-sales service. If the failure is caused by problems with core components such as the compressor, refrigerant, and evaporator, we need to contact after-sales service and let professional maintenance personnel come to repair it. Do not disassemble or move it yourself to avoid causing greater damage or danger.

3. Clean the frost layer. If the failure is caused by excessive frost on the evaporator, we can unplug the power supply and let the frost melt naturally, or use a hair dryer to accelerate the melting, then wipe the moisture with a dry cloth, and then re-power it on.

4. Clean the fan. If the failure is caused by fan blockage or damage, we can use a small brush or vacuum cleaner to clean the dust or debris on the fan, or replace a new fan.

5. Adjust the thermostat. If the failure is caused by incorrect thermostat settings, we can adjust the appropriate temperature according to the season and type of food.