How Does a Refrigerator Work?

The majority of homeowners don’t give much thought to the parts of a refrigerator until it stops running, or unless it is time to replace it. To ensure you get the most use possible from this important appliance it can be extremely useful to know exactly how a refrigerator keeps food and drinks cold—and One Pro Appliance Repairs is here to explain.

Read on to find out everything you might need to know about how a refrigerator works, how it cools your food and if it’s time to call refrigerator repair Elizabeth.

Parts of a Refrigerator

There are not too many homes that don’t have a refrigerator inside the kitchen. It has been a must-own household appliance for several years now. A household refrigerator will store your food at the best temperature, in order to eliminate spoiling and limit the growth of harmful bacteria. The cycle of refrigeration works by transferring the heat from inside of the appliance to the outside, by relying on the principles of evaporation and condensation.

The main components of your refrigerator are below. For questions or service call One Pro Appliance Repairs:


The refrigerator compressor is both a pump and a motor, and it’s responsible for circulation of refrigerant throughout the system.
A compressor is an important part of a refrigerator. Homeowners should enlist a professional service if the compressor is not working.


A condenser is found on the rear exterior panel of the appliance and will help to emit the warmth built-up from within the refrigerator out to the surrounding air.


A refrigerator evaporator is attached in the inside of a refrigerator where it absorbs the heat held within it, thereby lowering the temperature inside the refrigerator.

Right when an evaporator stops working, it’s time to find a professional. You should not wait too long.

Expansion Device

Liquified coolant is transferred through a capillary tube which serves as an expansion device to cool the gas inside, turning the gas back into a liquid.


The thermostat helps regulate the temperature within a refrigerator, beginning a new cooling period when needed.

The thermostat inside of a refrigerator is very prone to problems. Troubleshoot and hire a contractor in Elizabeth for repair right when a problem occurs.

How Does Refrigeration Work?

1. When the temperature in the interior of a refrigerator is above the set point sensors notify the compressor to start, and then the cooling period starts. The unit draws in the cold liquid refrigerant, pressurizes and condenses the liquid, and raises the temperature, in order to turn it into a gas.

2. The compressor directs the hot gas in the direction of the refrigerator condenser coils on the outside of the unit, at which point it comes in contact with warmer air temperature in the room and transforms to a liquid state.

3. The cool refrigerant continues on its trip towards the evaporator component, pushing through the many coils within the refrigerator and top freezer.

4. The refrigerant then absorbs the hot air from inside the appliance, thereby returning the temperature back to the best set point.

5. The liquid then evaporates, and turns back into a gas state, and returns to the compressor in order to then continue the cooling cycle.

Refrigeration technology is often used in a number of applications and large appliances, including heat pumps, air conditioners, refrigerators and freezers. By removing heat from one location and transferring it to another the continuous cycle of refrigeration aids in cooling a house, provides a perfect storage space for perishable food, and helps with manufacturing and storage of several different products and materials.

Need Refrigerator Repair?

Does your refrigerator need professional attention? You can schedule an appointment with One Pro Appliance Repairs.

One Pro Appliance Repairs can fix almost all major brands and models of refrigerators – including industrial models, stand-alone and side-by-side.Our licensed service technicians in Elizabeth undergo training to repair issues with cooling, broken ice makers, condensation, puddles and leaks, bulbs, digital controls, smart systems and other issues. We know all there is to know about refrigerator repair!