The main role of the refrigerator is refrigeration, providing a suitable storage environment for food, but most refrigerators will fail during use. In winter, it is better to say, but in the summer and autumn season, this fault will undoubtedly bring trouble to the family, but the cause of this failure is more related to factors such as power, compressors, refrigerants.
Composition of refrigerators
Ordinary home refrigerators are typically composed of a box, a control system, a refrigeration system, and other accessories.
The box includes a refrigerator main structure, a box door, a sealing strip and other components;
Control systems include thermostats, timers, start relays, overload protector, electric heaters, lighting and other components;
Refrigeration systems include compressors, evaporators, condensers, capillary, drying filters, and refrigerants.
Other attachments are mainly used in conjunction with various boxes, racks such as storage.
Reason and solution for refrigerators
electricity failure
When refrigerators are refrigerated, you need to start the compressor to work, its rated voltage is 220V, and can be started normally between 198V-242V through the start relay.
If the refrigerator power plug is not completely contacted with the socket, or if the income voltage is too low, it will cause the compressor to start normally. In this situation, the refrigerator naturally loses the cooling effect.
For this problem, you can try the following methods to resolve:
1. Check the power plug and reinsert it into the socket;
2, use the multimeter to measure the entry of the household voltage, if the voltage is too low or unstable, it is recommended to provide a regulator for the refrigerator to solve the problem.
Start relay damage
When the refrigerator compressor is started, it is necessary to start the relay assist launch. If the device is corrupt, the refrigerator compressor cannot start normally.
In general, after the refrigerator is turned on, if it is not possible to start the compressor, it cannot be started, the start relay is faulty, and the fault can be repaired by replacing the start relay.
Compressor failure
When the refrigerator works, the compressor will issue a continuous "" sound. If there is an abnormality in the internal structure of the compressor, it will cause the refrigerator to lose the cooling capacity.
For example, when the compressor hanging spring is broken, the refrigerator will make a significant abnormal sound; if the refrigerator is powered up, the compressor passes out "..." sound, then the inside of the compressor is broken.
For this type of failure, professional disassemble the cabinet for detailed testing, which is not recommended to remove repairs.
Capillary
The capillary plays an extremely important role in the refrigerator refrigeration link, which can change the state of the refrigerant low temperature and high pressure to low temperature and low pressure, and instantly absorb heat after entering the vaporizer through the capillary, thereby achieving the cooling effect.
If the capillary is blocked, the refrigerator will lose the transfer medium, and the refrigerator will lose the cooling ability.
At this time, you need to disassemble the refrigerator box and remove the capillary, remove the blockage of its interior, and then replace it, you can repair the fault.
It should be noted that ordinary users do not have the conditions of demolition, dredging capillary, so the fault should be repaired by the professional.
Refrigerant
When the refrigerator lacks a refrigerant, it will always be working, because the refrigeration capacity of the refrigerator is always less than the set temperature level.
In general, the lack of refrigerant in the refrigerator is caused by a storage tank or a transmission medium, which requires a focus on the component associated with the refrigerant, repair the crack and re-adding the refrigerant to solve the problem.
Box door sealing strip damage
The door of the refrigerator storage room usually has seals. If there is a damage phenomenon in the sealing strip, the refrigerator will lose or reduce the cooling effect, and the compressing machine will be in the working state.
At this time, you need to check the sealing strip of the door one by one, and replace the new sealing strip in the door of the problem, you can solve the problem.