The refrigerator is not cooling in summer, easy to solve in 3 steps

The temperature has risen sharply since the fall, and the refrigerator has become a necessity for many families to store food. If the refrigerator is not cooling, the trouble will be great, and the food stored in it will quickly deteriorate under high temperature catalysis. Here is a comprehensive introduction to several reasons and solutions for the uncooling of refrigerators, hoping to help you solve problems!

1. Analysis of the reasons why the refrigerator is not cooling

1. The high-pressure output buffer tube in the compressor is broken, or fixed The screw of the pipe is loose, causing the high-pressure pipe to not discharge air and the low-pressure pipe to not suck air, so although the compressor is running, it is not cooling.

2. The refrigeration system leaks and the refrigerant ran out. Although the compressor is running, there is no refrigerant evaporating and absorbing heat in the system, so the temperature in the refrigerator does not drop.

3. The capillary tube is blocked, the refrigerant cannot enter the evaporator to evaporate and absorb heat, so the temperature in the refrigerator does not drop.

2. How to judge the reason why the refrigerator is not cooling

1. Check whether the power connection is normal. Open the door of the box and observe whether the lighting in the box is on, or test with an electric pen.

2. If the power connection is normal, listen to whether the compressor is working. The compressor will make a slight and vibrating motor sound when working normally (if you feel the vibration of the compressor with your hands, you should be careful not to burn, because the temperature of the compressor is 40-50°C in winter and 80-90°C in summer)< /p>

3. If the compressor can work, judge whether there is refrigerant (refrigerant) in the refrigeration system. Let the refrigerator run for a few minutes, then unplug it, and listen carefully for the sound of liquid flowing in the copper pipe. If not, it means that the refrigerant in the system has leaked, or the compressor has lost its working capacity.

4. If your refrigerator is of indirect cooling type, check whether the fan is working. Open the door of the freezer compartment, press the button at the edge of the box opening with your hand (this button controls the indoor lighting and stop the fan when the door is opened) to check whether the fan is working. If the fan is not working, the refrigerator will not be cooled.

5. Putting too much food in the refrigerator will also affect the cooling effect.

Third, the elimination method of the refrigerator is not cooling

1. Cut the casing, replace the buffer tube, or install the screw Fasten.

2. First find out the leaking parts of the system, perform welding repair, pressure test, and evacuation after qualified, add refrigerant to a certain amount, usually according to the evaporator full frost or refrigerator Within the rated temperature shall prevail.

3. The capillary tube or the dryer is blocked, and the outlet is hot. For this reason, remove it and remove it! In addition, household refrigerators generally have two types: direct cooling and indirect cooling. Direct cooling means that the evaporator (cooling pipe) directly exchanges heat with the freezing and refrigerating rooms to achieve the purpose of cooling; the indirect cooling means the evaporator ( The cooling pipe is separated from the freezing and refrigerating rooms, and a fan blows cold air into the freezing and refrigerating rooms to achieve the purpose of cooling.

IV. Checking steps for common refrigerator faults

[Refrigerator is not cooling]: Check whether the power plug of the refrigerator is properly plugged in ; Whether the power socket has electricity; whether the power circuit breaker is off. Check whether the refrigerator door light is on to determine whether the refrigerator is connected to the power source. Check whether the thermostat is in the working position. The thermostat has a stop position (0 position), and the compressor will not work if it is placed in the stop position.

[Bad refrigerator refrigeration]: Check whether the thermostat is adjusted too low. Whether the food is stored too much or put in overheated food. Whether the door is opened frequently or the door is not tightly sealed. Whether there is direct sunlight or a heat source near the refrigerator. Whether the surrounding ventilation is poor. Check whether the ambient temperature is too low and the temperature compensation switch is not turned on.

[The refrigerator makes a noise and cannot start up]: Under normal ambient temperature conditions (15℃-38℃), when the refrigerator starts, if the compressor makes a “humming” sound, half The compressor stops working in about minutes. This situation is because the power supply voltage is too low (below 187V) and the compressor cannot be started; if the compressor makes a 'good' sound, then you hear a 'click' sound, this situation is Because the power supply voltage is too high (above 242V) or the compressor has been working continuously for too long; when the power supply voltage returns to normal or the temperature of the compressor casing drops, the refrigerator can work normally.

[Lack of door seal]: The main reason for the gap between the refrigerator door seal and the cabinet is the deformation of the door seal, which can be blown and deformed with a hair dryer (power 300W) Concave parts to restore the original shape and eliminate gaps. But note that the power of the hair dryer should not be too large, the hot spots should not be too concentrated, and the blowing port should not be too close to the deformed door seal, otherwise it will damage the door seal. In addition, pad a thin sponge under the recess of the door seal and the junction of the box door, which can also eliminate the gap. If the above correction is invalid, replace with a new rubber strip.

[Water accumulation or overflow in the refrigerator compartment]: The drain hole of the refrigerator compartment is blocked, causing the condensed water to be unable to drain smoothly. Use a flexible tool to clear it.

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