First, the common reasons for non-refrigeration:
1. The capillary of the freezer is blocked, so that the refrigerant cannot enter the evaporator, so it cannot absorb the heat emitted by the refrigerator, and the temperature in the freezer cannot drop;
2. It may be because the screws that fix the high-pressure output buffer tube in the compressor are no longer firm, or because the buffer tube is broken, the low-pressure tube cannot suck air and the high-pressure tube cannot be exhausted. Although the compressor is running, the refrigerator Nor refrigeration
3. Problems occur in the refrigeration system, such as leakage, and the refrigerator lacking heat absorption by the refrigerant does not naturally cool;
4. The liquid outlet valve and expansion valve of the refrigerator are not adjusted properly, and the components of the valve plate are not sealed well, resulting in the leakage of cold air or the wear of the compressor piston.
5. The leakage of the refrigeration system may be due to the refrigerator is not welded well or there is a problem in the use method, resulting in a slow cooling rate.
6. It may be that the gear of the freezer box is too low, which will affect the temperature of the freezer.
2. What should I do if the refrigerator is not refrigerated?
In view of the above problems, the method to solve the problem that the refrigerator is not cooled:
①If the capillary is blocked, the capillary must be removed for cleaning;
② If there is a problem with the buffer tube, you can only open the case, fix the screws, or replace the buffer tube;
③ If there is a problem with the refrigeration system, first find the location of the refrigeration system leak, weld repair, pressure test, and evacuate the location, and after all standards pass, add a certain amount of refrigerant until the temperature in the freezer reaches a certain temperature. If you can't weld by yourself, find a professional master to operate it, don't bite your head;
④ If there is a problem with the expansion valve and the outlet valve, first power off the freezer, then rotate the inlet valve counterclockwise to the end, remove the screws, install the "pair wire", and then install the pressure gauge and connecting pipe. Close the meter valve, turn the intake valve clockwise one turn to make it tee, observe whether the internal pressure of the freezer is normal, and adjust the gear according to different seasons and temperatures.
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Precautions when using the freezer for the first time:
1. When used for the first time, the freezer should run for 1-2 hours. When the operation reaches a stable state, stop the machine. Then put the food in the freezer and start it.
2. In order to prevent frequent power outages (or frequent switching) and protect the compressor, all refrigeration equipment delays the start of the compressor by two minutes (although there is delay protection, but there is no frequent switching).
3. The temperature of the freezer is adjusted and locked when it leaves the factory. Generally, they do not need to be adjusted again. If the temperature is controlled by the machine, the temperature of the freezer should be adjusted according to the ambient temperature.
4. The defrost of the freezer is automatically controlled by a computer. The freezer stops running and enters the defrost state (Note: The temperature rises slightly when the defrost is normal). Freezer automatically cools after defrosting.
5. The freezer should maintain an area of more than 10 cm before and after refrigeration, which is conducive to good ventilation of the refrigeration system and guarantees the refrigeration effect of the equipment. When placing food, do not place it too close to the air outlet. Keep proper clearance when placing the goods to facilitate the convection of cold air and the uniform temperature.
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In use, attention should be paid to the working status of each component of the refrigerator and the stability of the power supply. Whether the refrigeration, electrical, and wind systems are operating normally. 1. Stability of power consumption: The power supply of the refrigerator must use independent sockets. The current capacity of the socket and power cord must be the same as that of the refrigerator, and the socket must be reliably grounded. When the voltage is unstable, it is recommended to use a regulator with more than five times the voltage and power. Mainly observe the three parts of the refrigeration system, electrical system, and wind system to determine whether they are working properly.
1. Refrigeration system: observe whether there are cracks, breakages, frosts, and condensation on the refrigeration system pipelines; whether there is friction between the refrigeration pipelines, pipelines and the casing, especially the welding of the refrigeration pipelines, and whether there is any seepage at the joints leak. Where there is oil, or wipe the pipe with a clean soft cloth and soft paper. At the road welding and joints, observe whether there is oil pollution and judge whether there is leakage.
2. Electrical system: observe whether the electrical system fuse is blown, whether the wire insulation is intact, whether the circuit board is disconnected, whether the connection is loose, etc., especially whether the electrical connection is in good contact. The connecting screws and sockets are easily loosened, causing poor contact.
3. Air system: observe whether the air filter, heat exchanger coils, and fins have accumulated too much dust; whether the air inlet and outlet are open; whether the fan and fan blades are operating normally;
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What can we do to reduce the energy consumption of the freezer? This starts with the details, because the power and volume of the freezer cannot be changed. Awareness affecting the energy consumption of the freezer. What can be improved inside and outside the freezer?
First of all, we need to know what effect it has. The cooling efficiency of the freezer condenser is reduced, and the heat of food brought by the refrigerant from the freezer in the system cannot be exchanged smoothly. If the ventilation conditions are not good, its performance will be obvious.
Secondly, because the ambient temperature is relatively high and the relative temperature of food input is relatively high, the cooling time of the freezer is relatively long.
If the thermostat's gear is still in the upper gear at high temperature, it will inevitably lead to longer startup time or even shutdown, the cooling efficiency of the freezer condenser will decrease, and the heat brought by the refrigerant of the refrigerator cannot be exchanged smoothly. If the ventilation is not good, its appearance will be obvious.
The heat loss when the freezer is closed is also very large. In general, when the ring temperature reaches 32 degrees, the power consumption of the refrigerator may reach twice the rated power consumption, and so on. If you don't pay attention to these details, you can improve them in the future and you can reduce a lot of energy consumption.
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