How Does a Refrigerator Work?

The majority of homeowners don’t think about the components of a refrigerator until it stops cooling, or before it is time to buy a new one. In order to get the most out of this invaluable appliance it can be extremely nice to understand how a refrigerator keeps food and drinks cool—and Gray Appliance Repair is here to help.

Continue reading to find out what you should understand concerning how refrigerators work, how it cools your food and drinks and if it’s the right time to call refrigerator repair Missouri.

Parts of a Refrigerator

There aren’t many homes that don’t have a refrigerator inside the kitchen. It has been a standard household appliance for a lot of years. A household refrigerator can store food at the best temperature, in order to eliminate rotting and slow down harmful bacteria. The cycle of refrigeration works by moving the heat from the inside of the refrigerator to the exterior, relying on principles of evaporation and condensation.

The primary components of your refrigerator are below. For questions or service call Gray Appliance Repair:


The refrigerator compressor is both a pump and a motor, and it’s need for the circulation of refrigerant dispersed in the system.

A compressor is a very important piece of a refrigerator. You should enlist a professional service if the compressor is broken.


The condenser is found on the rear outside wall of the appliance and is there to release the heat collected from within the refrigerator then out into the surrounding air.


The evaporator is located on the inside of the refrigerator where absorbs the heat held inside of it, effectively lowering the temperature inside.

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

Expansion Device

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


The thermostat regulates the current temperature in the interior of a refrigerator, beginning a new cooling period as it is needed.

The thermostat inside of a refrigerator is very prone to malfunction. Troubleshoot and hire a contractor in Missouri for service right after an issue occurs.

How Does Refrigeration Work?

1. Once the temperature inside a refrigerator is above the set point sensors signal the refrigerator compressor to engage, and the next cooling cycle starts. The appliance collects the cool liquid refrigerant, condenses and pressurizes it, and raises the temperature, so it can turn into a gas form.

2. The compressor unit guides the hot gas in the direction of the condenser coils on the outside of the appliance, where it comes in contact with the lower air temperature in the home and returns to a liquified form.

3. The cool liquified gas then continues its journey to the refrigerator evaporator, pushing through the many coils within the refrigerator and top freezer section.

4. The liquid absorbs the heated air from inside the appliance, lowering the temperature until it has reached the optimal set point.

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

Refrigeration technology is often used in quite a few applications and appliances, including heat pumps, AC units, refrigerators and residential freezers. By contracting heat from a single place and then moving it to a different one the continuous cycle of refrigeration helps cooling your home, creates a perfect storage space for food that is perishable, and also helps with the manufacturing and storage of several different everyday products and goods.

Need Refrigerator Repair?

Think your refrigerator require repair? Time to schedule repair with Gray Appliance Repair.

Gray Appliance Repair is able to repair nearly all common brands of refrigerators – including commercial models, side-by-side and stand-alone.Our experienced repairman in Missouri undergo training to repair cooling problems, ice makers, condensation issues, water puddles and leaks, lighting, digital panels, smart controls and other issues. We know refrigerator repair! Schedule now!