Refrigerators are an essential appliance in every household. Among the different types of refrigerators, double door refrigerators are the most commonly used. Their popularity can be attributed to their capacity, design, and efficiency. However, like every other appliance, a double door refrigerator requires proper maintenance and repair.
In this article, we will provide you with a comprehensive guide on the wiring diagram of a double door refrigerator. We will explain in detail the different parts, functionality, and troubleshooting of a double door refrigerator. By the end of this article, you will have a better understanding of how a double door refrigerator works, and how to fix common problems.
Parts of a double door refrigerator
A double door refrigerator comprises several components that work together to keep food and beverages fresh. These components include:
| Component | Description |
|---|---|
| Compressor | It compresses the refrigerant and circulates it through the system. |
| Condenser | It removes heat from the refrigerant and converts it into a liquid state. |
| Evaporator | It absorbs heat from the refrigerator’s interior and cools down the refrigerant. |
| Thermostat | It regulates the temperature inside the refrigerator. |
| Defrost timer | It controls the defrost cycle of the refrigerator. |
| Door switch | It turns off the interior light and stops the evaporator fan when the doors are opened. |
Wiring diagram of a double door refrigerator
The wiring diagram of a double door refrigerator is a schematic representation of the electrical circuitry that makes up the appliance. It shows the interconnection between the different components of the refrigerator and how they are wired. The wiring diagram is a handy tool for troubleshooting electrical problems in the refrigerator and for understanding how the appliance works.
The wiring diagram of a double door refrigerator is divided into several sections that correspond to the different components of the appliance. These sections include:
- The compressor section
- The condenser section
- The evaporator section
- The thermostat section
- The defrost timer section
The compressor section
The compressor section of the wiring diagram comprises the compressor, the start relay, the overload protector, and the run capacitor. The compressor is the heart of the refrigeration system. Its function is to compress the refrigerant and circulate it through the system. The start relay, the overload protector, and the run capacitor work together to start and run the compressor.
When the thermostat detects that the temperature inside the refrigerator has risen above the set point, it sends a signal to the compressor to start. The start relay then provides power to the compressor, while the run capacitor ensures that the motor runs smoothly. The overload protector protects the motor from overheating and damage.
The condenser section
The condenser section of the wiring diagram comprises the condenser fan motor and the condenser coil. The condenser fan motor is responsible for circulating air over the condenser coil to remove heat from the refrigerant. The condenser coil is a network of tubing that removes heat from the refrigerant and converts it into a liquid state.
When the compressor starts, the condenser fan motor also starts. It draws in air from the outside and blows it over the condenser coil. The air absorbs heat from the refrigerant, cooling it down and causing it to condense into a liquid.
The evaporator section
The evaporator section of the wiring diagram comprises the evaporator fan motor, the evaporator coil, and the defrost thermostat. The evaporator fan motor is responsible for circulating air over the evaporator coil to remove heat from the refrigerator’s interior. The evaporator coil is a network of tubing that absorbs heat from the refrigerator’s interior and converts the refrigerant from a liquid to a gas state. The defrost thermostat is responsible for initiating the defrost cycle when the evaporator coil becomes frosted.
When the compressor starts, the evaporator fan motor also starts. It draws in cold air from the refrigerator’s interior and blows it over the evaporator coil. The air absorbs heat from the coil, cooling it down and causing the refrigerant to evaporate. As the refrigerant evaporates, it absorbs heat from the refrigerator’s interior, keeping it cool.
The thermostat section
The thermostat section of the wiring diagram comprises the thermostat and the damper motor. The thermostat is responsible for regulating the temperature inside the refrigerator. The damper motor controls the flow of cold air from the freezer to the refrigerator’s interior.
When the temperature inside the refrigerator rises above the set point, the thermostat sends a signal to the compressor to start. It also sends a signal to the damper motor to open, allowing cold air from the freezer to enter the refrigerator’s interior. When the temperature drops below the set point, the thermostat turns off the compressor and the damper motor.
The defrost timer section
The defrost timer section of the wiring diagram comprises the defrost timer and the defrost heater. The defrost timer is responsible for initiating the defrost cycle. The defrost heater is responsible for melting the frost that has accumulated on the evaporator coil.
Every few hours, the defrost timer sends a signal to the defrost heater to start. The defrost heater then heats up the evaporator coil, melting the frost that has accumulated on it. The water generated by the melting frost is collected in a drain pan located at the bottom of the refrigerator.
FAQ
Q: What should I do if my double door refrigerator is not cooling?
A: If your double door refrigerator is not cooling, check the following:
- Make sure that the thermostat is set to the correct temperature.
- Check if the compressor is running. If it is not running, check the start relay, the overload protector, and the run capacitor.
- Check if the condenser fan motor is running. If it is not running, replace it.
- Check if the evaporator fan motor is running. If it is not running, replace it.
- Check if the defrost thermostat is working correctly. If it is not working correctly, replace it.
Q: Why is my double door refrigerator making a loud noise?
A: A loud noise from a double door refrigerator could be due to several reasons:
- The condenser fan motor may be dirty or faulty.
- The evaporator fan motor may be dirty or faulty.
- The compressor may be faulty.
- The water inlet valve may be faulty.
- The defrost timer may be faulty.
Q: How often should I defrost my double door refrigerator?
A: It is advisable to defrost your double door refrigerator every six months. However, if you notice that the evaporator coil is becoming frosted more frequently, you should defrost it more often.
Q: Can I replace the wiring of my double door refrigerator myself?
A: It is not advisable to replace the wiring of your double door refrigerator yourself unless you have experience in handling electrical appliances. Tampering with the wiring of your refrigerator can be dangerous and can result in damage to the appliance or injury to yourself.
In conclusion, understanding the wiring diagram of your double door refrigerator is essential for proper maintenance and repair. By following this article’s guidelines, you can troubleshoot and fix common electrical problems in your refrigerator, ensuring that it continues to function efficiently.
