Refrigerator maintenance is not difficult: Junhong Electrical Appliance Repair teaches you how to deal with it easily

Refrigerator maintenance is not difficult: Junhong Electrical Appliance Repair teaches you how to deal with it easily

In daily life, refrigerators (refrigerators) are indispensable electrical equipment in homes and commercial places, and they bear the heavy responsibility of preserving and refrigerating food. However, as the use time increases, refrigerators will inevitably have some faults, such as poor refrigeration effect, excessive noise, water leakage and other problems. Faced with these faults, many people may feel at a loss, and even choose to replace new equipment directly. But in fact, as long as you understand the basic structure and working principle of the refrigerator, many maintenance problems can be easily solved. Today, Junhong Electrical Appliance Repair will teach you how to deal with refrigerator maintenance problems, so that you can easily become a "maintenance expert" at home.

1. Understand the basic structure of the refrigerator

The refrigerator is mainly composed of compressor, condenser, evaporator, capillary tube (or expansion valve), thermostat, lighting and other components. Among them, the compressor is the heart of the refrigerator, responsible for compressing the refrigerant into high-pressure gas; the condenser cools the high-pressure gas into high-pressure liquid; the evaporator uses the evaporation heat absorption principle of liquid refrigerant to reduce the temperature in the refrigerator; the capillary tube or expansion valve plays the role of throttling and reducing pressure, so that the refrigerant can fully evaporate in the evaporator; the thermostat is used to control the temperature in the refrigerator to ensure that it fluctuates within the set range.

2. Common refrigerator failures and solutions

1. Poor refrigeration effect

• Causes: insufficient refrigerant, compressor failure, evaporator frosting too thick, etc.

• Solution: First check whether the refrigerant is sufficient. If not, ask a professional to add it. If the compressor makes an abnormal sound or fails to start, it may be a compressor failure and needs to be replaced or repaired. If the evaporator is frosted too thickly, turn off the power and let the frost melt naturally, or use a hair dryer to accelerate the melting.

2. Excessive noise

• Causes: The fixing screws of the compressor are loose, the condenser or evaporator collides with the box, and the fan blades are deformed.

• Solution: Check and tighten the compressor fixing screws; adjust the position of the condenser or evaporator to avoid collision with the box; replace deformed fan blades.

3. Water leakage

• Cause: The drain hole is blocked, the water tray is broken or shifted, and the water overflows after the evaporator is frozen and melted, etc.

• Solution: Use a thin wire or toothpick to unclog the drain hole; replace the broken water tray or adjust its position; regularly clean the frost on the evaporator to prevent water from overflowing after it melts.

4. Thermostat failure

• Cause: Thermostat contacts are sticky, the temperature sensor is damaged, etc.

• Solution: Replace the damaged thermostat or temperature sensor. Note that the power supply must be disconnected before replacement, and make sure that the new part is the same model as the old part.

III. Maintenance precautions

1. Safety first: Before repairing the refrigerator, be sure to disconnect the power supply to avoid the risk of electric shock.

2. Professional tools: Use professional maintenance tools and testing instruments to ensure the safety and accuracy of the maintenance process.

3. Maintenance experience: For beginners, it is recommended to perform maintenance under the guidance of experienced people to avoid equipment damage or personal injury caused by improper operation.

4. Regular maintenance: Regular cleaning and maintenance of the refrigerator can extend its service life and reduce the probability of failure.

In short, refrigerator maintenance is not mysterious. As long as you master its basic structure and the handling methods of common faults, you can easily deal with various maintenance problems. As a professional electrical appliance repair service provider, Junhong Electrical Appliance Repair is always committed to providing users with high-quality repair services and technical support. If you encounter any problems or difficulties during the repair process, please feel free to contact us at any time and we will do our best to help you.