How Does a Refrigerator Work?

You probably do not think too much about the parts of a refrigerator until it shuts down, or before it comes time to buy a new one. To ensure you get the most use possible from this invaluable appliance it can be good to understand how it keeps your food cool—and L&G San Diego Appliance Repair is here to explain.

Continue reading to learn everything you will want to know concerning how a refrigerator works, how it cools your food and if it’s time to reach out to refrigerator repair San Diego.

Parts of a Refrigerator

There aren’t many houses that don’t feature a refrigerator in the kitchen. It’s been a must-own appliance for many years. A residential refrigerator can store your food and drinks at the right temperature, to eliminate spoilage and slow down the growth of bacteria. The cycle of refrigeration starts by transferring the warmth from the inside of the refrigerator to the exterior, using the principles of evaporation and condensation.

The main parts of your refrigerator are. For questions or service call L&G San Diego Appliance Repair:


A compressor is both a pump and a motor, and it is need for circulation of refrigerant throughout the cooling system.
The compressor is a very important part of a refrigerator. You should hire a professional company if the compressor is broken.


A condenser is located on the rear outside wall of the appliance and will help to disperse the heat built-up inside the refrigerator out into the surrounding air.


A refrigerator evaporator is located in the inside of a refrigerator where absorbs the heat contained within it, effectively lowering the temperature inside the refrigerator.

Once an evaporator stops working, it’s time to hire a professional. You should not wait until it’s too late.

Expansion Device

Liquid refrigerant is transferred through a capillary tube that works as an expansion device to cool the gas, turning the gas into liquid.


The thermostat regulates the current temperature in the interior of a refrigerator, beginning the cooling period as it is needed.

A thermostat inside of a refrigerator is often prone to issues. Troubleshoot and hire a contractor in San Diego for service the moment an issue happens.

How Does Refrigeration Work?

1. When the temperature in the interior of the refrigerator is above the set point sensors alert the refrigerator compressor to engage, and the cool down begins. The refrigerator attracts the cool liquid refrigerant, then pressurizes and condenses it, and raises the temperature, in order to turn it into a gas.

2. The refrigerator compressor pushes the warm gas in the direction of the condenser coils on the rear of the unit, where it comes in contact with the lower temperature in the room and reverts back to a liquid state.

3. The cooled refrigerant then continues its journey towards the evaporator component, finding its way through the coils within the appliance and freezer section.

4. The coolant absorbs the heated air from the interior of the refrigerator, thereby lowering the temperature until it has reached the correct final point.

5. The coolant evaporates, and turns back into a gas form, and then returns to the compressor unit in order to continue the cycle.

Refrigeration is used in quite a few applications and household appliances, including heat pumps, AC units, refrigerators and residential freezers. By removing warmth from a single location and then relocating it to another the continuous cycle of refrigeration aids in cooling your home, creates a safe space for perishable food, and helps with the manufacturing and storage of a lot of different everyday products and goods.

Need Refrigerator Repair?

Think your refrigerator require repair? You can schedule service with L&G San Diego Appliance Repair.

L&G San Diego Appliance Repair is able to service nearly all standard models of refrigerators – including commercial models, side-by-side and stand-alone.Our service technicians in San Diego complete training to troubleshoot and repair cooling issues, ice makers, condensation, puddles and leaks, lighting, touch controls, smart controls and countless other malfunctions. We know all about refrigerator repair! Call today!