How Does a Refrigerator Work?

Most homeowners do not give much thought to the inner workings of a refrigerator unless it stops running, or it comes time to replace it. To ensure you get the most use possible from this invaluable appliance it can be very good to understand exactly how a refrigerator keeps food cold—and McBride Appliance Repair is here to explain.

Read below to learn everything you will want to understand concerning how a refrigerator runs, how it cools your food and if it is the right time to reach out to refrigerator repair.

Parts of a Refrigerator

You won’t find many homes that do not have a refrigerator in the kitchen. It has been a standard household appliance for many years. A refrigerator stores food at the best temperature, in order to stop rotting and slow down harmful bacteria. The process of refrigeration works by transferring the warmth from the inside of the refrigerator to the outside, by using principles of condensation and evaporation.

The primary parts of a refrigerator are below. For questions or service call McBride Appliance Repair:


The compressor is both a pump and a motor, and it’s necessary for circulation of refrigerant dispensed in the cooling system.
A compressor is a very important piece of a refrigerator. You should call on a professional service if the compressor is broken.


The condenser is found on the back exterior panel of the refrigerator and will help to release the warmth built-up from within the refrigerator out to the air.


The refrigerator evaporator is stored in the inside of a refrigerator where it absorbs the heat contained within it, thereby reducing the interior temperature.

The moment the evaporator stops working, it is time to hire a professional. Do not wait too long.

Expansion Device

Liquid coolant is transported through a capillary tube which serves as an expansion tool as it cools the gas, thereby turning the gas back into liquid.


A thermostat helps regulate the current temperature throughout the refrigerator, beginning the cooling period as necessary.

The thermostat inside of a refrigerator is very prone to malfunction. Troubleshoot and call a repairman in CITY for service right after a problem occurs.

How Does Refrigeration Work?

1. Right when the temperature inside the refrigerator goes higher than the set point sensors signal the refrigerator compressor to start, and then the next cooling cycle begins. The refrigerator attracts the cool liquified refrigerant, pressurizes and condenses the refrigerant, and increases the temperature, in order to turn it into a gas.

2. The refrigerator compressor unit pushes the heated gas in the direction of the condenser coils located on the rear of the unit, at which point it comes into contact with warmer air temperature in the kitchen and reverts back to a liquid state.

3. The cooled liquified gas then continues on its journey towards the refrigerator evaporator, pushing through the coils within the appliance and top freezer.

4. The coolant absorbs the heated air from inside the refrigerator, returning the temperature down to the optimal set point.

5. The coolant will evaporate, and will turn back into a gas form, and returns to the compressor in order to then continue the cooling cycle.

Refrigeration technology is used in a number of applications and large appliances, this includes heat pumps, AC units, refrigerators and freezers. By extracting warmth from a single place and then relocating it to another the cycle of refrigeration contributes in cooling your house, creates a perfect environment for food that is perishable, and also helps with the manufacturing and storage of several different common products and materials.

Need Refrigerator Repair?

Think your refrigerator need repair? You can schedule service with McBride Appliance Repair.

McBride Appliance Repair can service nearly all major brands of refrigerators – including industrial models, stand-alone and side-by-side.Our licensed technicians in CITY complete training to repair issues with cooling, broken ice makers, problems with condensation, puddles of water and leaks, lighting, touch controls, smart technology and various problems. We know refrigerator repair! Call today!