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.
