How Does a Refrigerator Work?

If you’re like most homeowners you don’t think too much about the parts of a refrigerator unless it breaks down, or it comes time to buy a new model. To guarantee you get the most from this important appliance it can be very useful to understand how it keeps your food cold—and Blair Appliance Repair is here to explain.

Continue reading to learn everything you should understand concerning how refrigerators run, how it cools your food and drinks and if it’s the time to hire refrigerator repair.

Parts of a Refrigerator

There aren’t too many homes that do not have a refrigerator in the kitchen. It has been a must-have household appliance for a lot of years now. A residential refrigerator stores food and drinks at the optimal temperature, to eliminate rotting and limit the growth of harmful bacteria. The process of refrigeration starts by transferring the warmth from the inside of the unit to the outside, by using principles of condensation and evaporation.

The standard components of a refrigerator are below. For questions or service call Blair Appliance Repair:


The refrigerator compressor is both a motor and a pump, and it’s responsible for circulation of refrigerant in the cooling system.
A compressor is an important piece of a refrigerator. You should call a professional service if the compressor is not working.


The refrigerator condenser is found on the rear exterior panel of the refrigerator and will help to disperse the heat absorbed from inside the refrigerator out into the air.


A refrigerator evaporator is installed on the inside of the refrigerator where absorbs the warmth held within it, thereby reducing the interior temperature.

Right when the evaporator isn’t working, it is time to find a professional. Don’t wait until it’s too late.

Expansion Device

Liquid refrigerant is carried within a capillary tube that works as an expansion device as it cools the gas inside, turning the gas into liquid.


The thermostat regulates the temperature within the refrigerator, starting the cooling period as necessary.

A thermostat inside of a refrigerator is very prone to malfunction. Troubleshoot and call a contractor in CITY for repair right after an issue happens.

How Does Refrigeration Work?

1. When the temperature inside a refrigerator is above the set point sensors notify the compressor to engage, and the next cool down starts. The unit collects the cool liquid refrigerant, condenses and pressurizes the liquid, and raises the temperature, so it can turn into a gas form.

2. The refrigerator compressor unit guides the warm gas towards the condenser coils on the exterior of the appliance, at which point it comes in contact with warmer temperature in the home and returns to a liquified form.

3. The cool liquified gas then continues on its trip to the refrigerator evaporator, finding its way through the coils within the refrigerator and top freezer section.

4. The liquid then absorbs the heated air from inside the appliance, reducing the temperature down to the correct final point.

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

Refrigeration is often used in many applications and appliances, including heat pumps, air conditioners, refrigerators and residential freezers. By extracting heat from a single place and then moving it to a different one the continuous cycle of refrigeration contributes in cooling your house, creates a perfect storage space for food that is perishable, and also helps with manufacturing and storage of a lot of different everyday products and materials.

Need Refrigerator Repair?

Does your refrigerator require service? Time to schedule service with Blair Appliance Repair.

Blair Appliance Repair will repair most major brands and models of refrigerators – including commercial models, side-by-side and stand-alone.Our technicians in CITY complete training to fix issues with cooling, malfunctioning ice makers, problems with condensation, puddles and leaks, light bulbs, touch controls, smart systems and countless other problems. We know all about refrigerator repair!