Why does the freezer always burn the compressor

The freezer is always the reason for burning the compressor:

Insufficient cleanliness of the system The most important problem is the retention of moisture, which can lead to poor insulation of the motor; Moisture, refrigerant and refrigerant oil circulate in the system, and after changes in high and low temperatures, acidic substances are generated, which in turn destroys the insulation layer of the motor, and causes poor insulation of the motor and burns the motor due to long-term operation.

Unstable power supply Poor power supply quality, such as too high or too low voltage (more self-generated power supply), has a negative impact on the motor, especially beyond the rated voltage range of the compressor, the most improper use, long-term operation makes the motor in a low efficiency and overheating state, resulting in poor insulation and motor burnout. In addition, the three-phase voltage or current imbalance will also cause the motor loss (iron loss and copper loss) to increase, and the temperature of the motor coil will increase, and if the protection is improper, the destruction of the motor insulation will have adverse consequences.

Compressor starts frequently During the motor start-up process, although the start-up is step-down, the starting current is still several times the rated current, so the temperature rises quickly during the motor start-up process. If the cooling capacity range of the refrigeration unit is not properly selected, the control exceeds the range of the compressor start and stop frequency, resulting in frequent shutdown of the compressor, which will shorten the service life of the compressor motor.

The system is not cleaned after the motor is burned For the system that has had a compressor burnout failure, the system must be cleaned thoroughly, because when the motor is burned, strong acid will be produced and reside in the system, if the treatment is not clean, when the new motor is running, the residual acid will corrode the motor insulation, causing the new motor to burn out again.

When this happens, if the motor protection fails, the motor may overload and burn out. The compressor is stuck because there are foreign objects in the compressor, the oil is operated without lubrication, the parts are loose, the body is overheated and sintered, and the bearings are worn.

Hello! For 400L freezers, you can choose a press with a refrigeration capacity of about 200-220W, and you can choose a press with R600A or R134A refrigerant. The press indicates which refrigerant to use, which refrigerant must be filled; In addition, the amount of refrigeration is also emphasized, and the inappropriate amount of refrigeration will also damage the press.

According to the size of the freezer system, R600A is about 90-100G, and R134A is about 200G. Hope it helps.

I think that the general causes of compressor burning are: voltage instability, low voltage, easy to burn compressor. The working environment is hot, such as in the sun, and the heat dissipation is not good.

There are places where the refrigeration system is blocked. The amount of fluorine added is too much, which causes the load to increase. The compressor has been running without stopping.

It is easy to cause damage to the compressor.

The compressor is the heart of the freezer, and in the case of normal voltage and current, and the operating circuit (overload protector and relay are also checked), it is recommended that the compressor is faulty, and it can be replaced or opened for maintenance.

Check if there's a place where there's electricity.

It's so professional, I'll just come to study.

1.Overload work: The refrigerator compressor skin dispersing machine has been overloaded for a long time, resulting in overheating of the motor and burning out of the windings.

2.Poor lubrication: Refrigerator compressors need lubricating oil to protect the motor during operation, and if the lubrication is poor, the motor will burn out due to friction overheating.

3.Unstable voltage: If the voltage of the circuit where the refrigerator compressor is located is unstable, it will cause the motor to overheat and the windings to burn out.

4.If the refrigerator is not used for a long time, the lubricating oil in the compressor will be lost, causing the motor to overheat and burn out.

5.Aging of parts: The parts in the refrigerator compressor will age with the growth of time, causing the motor to fail and burn out.

6.Short-circuit fault: The circuit in the refrigerator compressor has a short-circuit fault of the stove, which will cause the motor to overheat and the windings to burn out.

If the refrigerator does not stop, it means that the compressor of the refrigerator has been running, and the operation of the refrigerator for a long time without stopping will definitely shorten the service life of the compressor, and even burn out the compressor. Therefore, when the refrigerator does not stop, it is necessary to find out the reason for its non-stop operation in time, and solve it immediately to prolong the service life of the compressor.

Reason for non-stop of the refrigerator:

1. The regulating temperature of the refrigerator is too low, so that the internal temperature of the refrigerator cannot be lowered. Solution: When you feel that the refrigerator is not stopping, turn down the number of the thermostat of the refrigerator.

Second, the thermostat of the refrigerator is out of order. Solution: Check the cause of the thermostat failure and replace the thermostat of the refrigerator.

3. The ambient temperature around the refrigerator is too high, which will also cause the refrigerator to not stop. Solution: When choosing a dry refrigerator, it is best to choose a refrigerator that can adapt to the high temperature of the surrounding environment.

Fourth, the refrigerator does not stop is the early manifestation of the refrigerator not refrigerating, simply put, the refrigerator lacks refrigerant. Solution: Add refrigerant to solve the problem.

5. Frost on the wall of the refrigerator refrigerator causes the refrigerator to not stop. Solution: Unplug the refrigerator, melt the frost layer in the refrigerator compartment, and adjust the position of the refrigerator thermostat at the same time.

6. The position of the food inside the refrigerator is incorrect or the refrigerator is opened too many times. Solution: Position the food correctly, reduce the number of door openings, and save the energy consumption of the refrigerator to the greatest extent.