Haier refrigerator compressor does not start.

The refrigerator doesn't start, it may be that the refrigeration compressor of the refrigerator is working, or there may be something wrong with the refrigerant of the refrigerator. Need to use professional testing instruments for testing, check the specific situation of compressor and refrigerant. The refrigeration compressor does not start, which may be caused by refrigerant leakage. At this time, it is necessary to wipe the refrigerator evaporator with alcohol. If the refrigeration compressor does not start, it may be a refrigerant fault and needs to be added again. If the compressor does not work due to refrigerant failure, it needs to be added again. The most common fault of general refrigerator is that the compressor doesn't work. This fault phenomenon is that the refrigeration compressor cannot be started because the start button is not pressed. In addition, for the refrigerator, the cause of failure may also occur on the refrigeration compressor, such as evaporator damage. Here are some common faults and their solutions.

First, the refrigerator doesn't start.

The refrigerator does not start after being electrified, which is generally caused by the damage of the refrigerator temperature sensor or the short circuit and overheating of the joint. You can turn off the power of the refrigerator and let it run for about 10 minutes, and then turn it on to check whether the voltage is normal. If the voltage is abnormal, you can use a multimeter to test and judge. Check whether the refrigerator power supply is AC+V power plug. If the AC+V socket voltage is normal, there is no problem in plugging it into the plug, indicating that the plug of the refrigerator is short-circuited or overheated. If there is no problem, it is recommended to replace the plug first or extend the service life.

Second, the refrigerator temperature sensor failure

Because the sensor of the refrigerator is usually outdoors, if it is damaged, it will cause the refrigerator to work abnormally, so it must be replaced in time. In addition, there is a very important reason for the failure of the refrigerator temperature sensor. There are two main reasons for the failure of the refrigerator temperature sensor: first, the aging phenomenon in the use process leads to the power failure of the temperature sensor; Second, it has not been replaced after a period of use. If the refrigerator has the above two kinds of faults, it is usually solved by replacing the temperature sensor during maintenance. The refrigerator temperature sensor is generally installed under the refrigeration and freezing part of the refrigerator, and it is an instrument that transmits the temperature change signal of the refrigerator freezer. The temperature change signal of the refrigerator can be controlled by adjusting the temperature display lamp and the temperature sensor indicator lamp on the thermostat in the refrigerator (there must be a certain distance between the thermostat and the compressor). The temperature sensor in the refrigerator generally consists of a PIN tube and a TNT tube, and both ends of the PIN tube are connected with the temperature sensor or the refrigeration tube of the compressor. When the refrigerator displays a fault alarm on the temperature sensor during the refrigeration process, the compressor cannot run at the same time; When the compressor stops working, the indicator light on the temperature sensor and the indicator light of the temperature sensor will not light up to indicate a fault, and the compressor also stops working; If the alarm information is not displayed on the temperature sensor after the compressor stops working, the refrigerator will also fail to start.

Third, the refrigerator refrigeration is not normal.

When the refrigerator suddenly stops running or the temperature rises, the cooling effect disappears. When the refrigerator is cooling, the temperature of the refrigerator suddenly rises, not suddenly drops, but quickly rises to a certain extent and then stops running. This situation is mostly related to the failure of the internal parts of the refrigerator. First, check whether the compressor, evaporator and thermostat are in good condition. If the temperature drop in the freezer compartment of the refrigerator is not obvious or the cooling effect is not good, it is necessary to check whether the refrigeration unit or compressor is operating normally. If both the compressor and the refrigeration unit have problems, they need to be replaced.