Some customers use the reaction in the freezer a few months later, feeling suddenly not cooling, or cooling effect of variation, and this is how it happened? Why is this happening, this time you can find in Europe as snow freezer so professional refrigeration equipment manufacturers to solve the problem. Here freezer price for everyone to explain what reasons for this failure to produce, and how to deal with it.

Symptom one: After 3 months, the cooling effect of variation.

Failure Analysis and Maintenance: check user power door after normal opening mechanism on electric heat, indoor and outdoor unit is working properly, but the indoor air is not hot wind, rough hand touch the outdoor unit pipe joints warm feeling, not hot. Would try to set freezer cooling operation, the measured working pressure of 4.5kg / cm2. Taking into account the frequency freezers electronic expansion valve throttling, the working pressure only to determine the fault is not accurate, so then measure the outdoor current, measured and found to work only current 10.5A, much smaller than the rated value, determine the fault for the "loss of fluorine" .

Fluoride first to find out the freezer refrigerant leak site. Test drive mechanism hot, with a coating liquid detergent behind the leak in the joints, isolated indoor fitting is loose, a refrigerant leak causes. After fastening leak again, to ensure that the pipeline intact, then the system refrigerant charge.

Freezer is best to use "fixed stream filling method." In order to ensure the refrigerant charge amount of accurate, first exhaust pipe temperature sensor vacant. When turned on, measured by the current meter outdoor power lines, increases the amount of refrigerant added, the current will gradually become larger, when it reaches the rated current to 12A at (70 Variable Frequency Guiji 16A), the amount of refrigerant charge Suitable. This method is often used in the home repair.

If the freezer repairs or leaks too large, long-term exposure to air, the system refrigerant has leaked, quantitative method can be used refrigerant charge. First, the system is evacuated using vacuum or use external air evacuation method can be. Then according to the standard of the system refrigerant charge, if the outside air is evacuated, it should be slightly less than the standard amount a little, and in the cold state. These is why the use of the freezer for months, suddenly not cooling or poor refrigeration why.