How Does a Refrigerator Work?

You probably do not give too much thought to the inner workings of a refrigerator unless it shuts down, or unless it comes time to buy a new one. In order to get the most use possible out of this invaluable appliance it can be extremely good to understand exactly how it keeps food cold—and Foster Appliance Repair is here to help.

Read on to learn all you need to know concerning how a refrigerator runs, how it cools your food and if it is time to hire refrigerator repair Tennessee.

Parts of a Refrigerator

There are not too many homes that do not feature a refrigerator inside the kitchen. It’s been a must-have household appliance for several years. A refrigerator stores food and drinks at the right temperature, to eliminate spoilage and limit the growth of bacteria. The concept of refrigeration starts by moving the heat from inside of the appliance to the outside, relying on the principles of evaporation and condensation.

The standard parts of your refrigerator are. For questions or service call Foster Appliance Repair:


A compressor is both a motor and a pump, and it is responsible for circulation of refrigerant in the cooling system.
A compressor is an integral part of a refrigerator. Homeowners should call on a professional company if the compressor is not working.


A condenser is located on the back outside wall of the appliance and helps to disperse the warmth absorbed within the refrigerator out in the surrounding air.


A refrigerator evaporator is stored on the interior of the refrigerator where absorbs the warmth trapped inside of it, thereby lowering the temperature inside.

Right when an evaporator is not working, it’s time to call a professional. Don’t wait until it is too late.

Expansion Device

Liquified refrigerant is transferred through a capillary tube which serves as an expansion device as it cools the gas inside, transforming the gas into a liquid.


The thermostat helps regulate the current temperature within a refrigerator, engaging the cooling period when appropriate.

The thermostat in a refrigerator is very prone to malfunction. Troubleshoot and hire a contractor in Tennessee for repair right when an issue happens.

How Does Refrigeration Work?

1. Once the temperature within the refrigerator goes higher than the set point sensors signal the refrigerator compressor to begin, and then the next cooling period starts. The refrigerator attracts the cool liquid refrigerant, condenses and pressurizes the refrigerant, and increases the temperature, so it can turn into a gas form.

2. The compressor guides the hot gas in the direction of the refrigerator condenser coils on the outside of the appliance, where it comes in contact with warmer temperature in the kitchen and reverts to a liquified state.

3. The cool liquified gas then continues on its journey to the refrigerator evaporator, pushing through the coils in the inside of the appliance and top freezer section.

4. The liquid then absorbs the hot air from inside the refrigerator, thereby lowering the temperature back to the best set point.

5. The coolant then will evaporate, and turns back to a gas, and returns to the compressor unit so it can continue the cycle.

Refrigeration technology is found in many applications and household appliances, including heat pumps, air conditioners, refrigerators and freezers. By removing warmth from a single location and then moving it to another the continuous cycle of refrigeration helps cooling a home, provides a optimal storage space for perishable food, and also helps with manufacturing and storage of many different everyday products and goods.

Need Refrigerator Repair?

Does your refrigerator need service? Time to schedule an appointment with Foster Appliance Repair.

Foster Appliance Repair is able to service all standard brands of refrigerators – that includes commercial models, stand-alone and side-by-side.Our experienced appliance repairmen in Tennessee undergo training to repair cooling issues, malfunctioning ice makers, condensation problems, puddles of water and leaks, bulbs, digital panels, smart synchronization and numerous other problems. We know all there is to know about refrigerator repair! 100% satisfaction guaranteed!


Call Now ButtonCLICK-TO-CALL