How Does a Refrigerator Work?

If you are like most homeowners you don’t think too much about the components of a refrigerator unless it breaks down, or before it comes time to replace it. In order to get the most out of this important appliance it can be good to understand how a refrigerator keeps food cold—and CPR Appliance Repair is here to explain.

Read on to find out all you need to know about how a refrigerator works, how it cools your food and drinks and if it is the time to reach out for appliance repair in Chicago and the Chicagoland area.

Parts of a Refrigerator

You won’t find too many homes that do not have a refrigerator inside the kitchen. It’s been a standard appliance for several years now. A residential refrigerator can store food and drinks at the right temperature, to prevent spoilage and limit the growth of harmful bacteria. The process of refrigeration works by transferring the warmth from the interior of the appliance to the exterior, using the principles of evaporation and condensation.

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


A compressor is both a motor and a pump, and it’s need for circulation of refrigerant in the system. A compressor is an important part of a refrigerator. You should call a professional company if the compressor stops working.


A refrigerator condenser is located on the back exterior panel of the refrigerator and will help to release the warmth absorbed from inside the refrigerator out in the air.


A evaporator is housed in the interior of a refrigerator where it absorbs warmth held inside of it, thereby reducing the interior temperature.

Once an evaporator isn’t working, it is time to find a professional. You should not wait until it’s too late.

Expansion Device

Liquified refrigerant is transported through a capillary tube which acts as an expansion device to cool the gas, thereby transforming it into liquid.


A thermostat helps regulate the temperature within the refrigerator, engaging a new cooling period as needed.

The thermostat in a refrigerator is often prone to issues. Troubleshoot and call a repairman for service right after an issue occurs.

How Does Refrigeration Work?

1. Right when the temperature in the interior of the refrigerator is higher than the set point sensors signal the refrigerator compressor to engage, and then the cool down starts. The appliance attracts the cold liquified refrigerant, then pressurizes and condenses it, and increases the temperature, in order to turn it into a gas.

2. The refrigerator compressor unit guides the warm gas towards the condenser coils on the exterior of the refrigerator, at which point it comes in contact with the lower temperature in the home and reverts to a liquid state.

3. The cooled liquid then continues its trip towards the evaporator component, traveling through the coils within the refrigerator and top freezer.

4. The refrigerant absorbs the heated air from inside the refrigerator, cooling the temperature until it has reached the desired set point.

5. The refrigerant evaporates, and will turn back into a gas, and then returns to the refrigerator compressor unit so it can then continue the cycle.

Refrigeration is used in many applications and household appliances, including heat pumps, air conditioners, refrigerators and residential freezers. By extracting heat from a single place and then moving it to another the continuous cycle of refrigeration will help cooling your house, creates a perfect environment for perishable food, and helps with the manufacturing and storage of many different products and goods.

Need Refrigerator Repair?

Does your refrigerator require service? Time to schedule repair with BRAND.

CPR Appliance Repair is able to repair nearly all popular models of refrigerators – includes commercial models, side-by-side and stand-alone.Our experienced appliance repairmen undergo training to repair cooling issues, malfunctioning ice makers, issues with condensation, puddles and leaks, light bulbs, digital panels, smart systems and other problems. We know all there is to know about refrigerator repair! We really do!


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