How Does a Refrigerator Work?

You probably do not think about the inner workings of a refrigerator unless it shuts down, or it is time to buy a new model. To ensure you get the most out of this invaluable appliance it can be nice to understand how a refrigerator keeps food cool—and Brentwood Appliance Repair is here to help.

Continue reading to find out all you will want to know concerning how refrigerators work, how it cools your food and drinks and if it is the right time to call refrigerator repair Brentwood.

Parts of a Refrigerator

You will not find too many houses that don’t have a refrigerator inside the kitchen. It’s been a standard kitchen appliance for several years now. A residential refrigerator is able to store your food and drinks at the right temperature, to eliminate spoiling and stop harmful bacteria. The concept of refrigeration starts by distributing the warmth from the interior of the unit to the outside, by relying on principles of evaporation and condensation.

The main parts of your refrigerator are below. For questions or service call Brentwood Appliance Repair:


A refrigerator compressor is both a pump and a motor, and it’s responsible for circulation of refrigerant dispersed in the system.
A compressor is an important piece of a refrigerator. Homeowners should enlist a professional company if the compressor is broken.


The condenser is located on the back outside wall of the refrigerator and helps to emit the heat built-up from inside the refrigerator out in the surrounding air.


The refrigerator evaporator is located in the interior of a refrigerator where absorbs heat held inside of it, thereby lowering the temperature inside the unit.

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

Expansion Device

Liquid refrigerant is carried through a capillary tube that acts as an expansion tool as it cools the gas, transforming it back into liquid.


The thermostat regulates the temperature throughout a refrigerator, engaging the cooling cycle when needed.

The thermostat inside of a refrigerator is often prone to problems. Troubleshoot and hire a technician in Brentwood for repair right after a problem occurs.

How Does Refrigeration Work?

1. Right when the temperature in the interior of the refrigerator rises higher than the set point sensors signal the compressor to start, and the next cooling period begins. The appliance draws in the cold liquid refrigerant, condenses and pressurizes the liquid, and raises the temperature, in order to turn it into a gas form.

2. The refrigerator compressor unit directs the hot gas towards the condenser coils located on the back of the appliance, where it comes in contact with the lower air temperature in the home and reverts to a liquid state.

3. The cool refrigerant then continues on its journey to the refrigerator evaporator component, traveling through the coils on the inside of the appliance and freezer compartment.

4. The refrigerant absorbs the warm air from within the refrigerator, lowering the temperature down to the correct set point.

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

Refrigeration is often found in a number of applications and large appliances, this includes heat pumps, air conditioners, refrigerators and residential freezers. By contracting warmth from a single location and transferring it to somewhere else the continuous cycle of refrigeration will help cooling your house, provides a perfect environment for food that is perishable, and helps with manufacturing and storage of a lot of different products and goods.

Need Refrigerator Repair?

Think your refrigerator need professional attention? Time to schedule an appointment with Brentwood Appliance Repair.

Brentwood Appliance Repair can fix most standard models of refrigerators – including industrial models, side-by-side and stand-alone.Our service technicians in Brentwood undergo training to repair cooling problems, ice makers, problems with condensation, puddles and leaks, lighting, touch panels, smart systems and numerous other issues. We know all there is to know about refrigerator repair!