How Does a Refrigerator Work?

If you’re like most homeowners you don’t think too much about the parts of a refrigerator until it shuts down, or unless it comes time to buy a new one. In order to get the most from this important appliance it can be very nice to know exactly how it keeps your food and drinks cool—and Donaldson Appliance Repair is here to help.

Continue reading to find out all you will want to know concerning how a refrigerator runs, how it cools your food and if it’s the time to reach out to refrigerator repair Texas.

Parts of a Refrigerator

There aren’t many houses that don’t have a refrigerator inside the kitchen. It has been a must-own kitchen appliance for many years now. A household refrigerator stores your food at the optimal temperature, to stop rotting and limit the growth of harmful bacteria. The process of refrigeration starts by transferring the heat from the inside of the refrigerator to the exterior, using principles of condensation and evaporation.

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


A compressor is both a pump and motor, and it is need for the circulation of refrigerant throughout the cooling system.
The compressor is a very important piece of a refrigerator. You should call on a professional company if the compressor is broken.


The refrigerator condenser is found on the rear exterior wall of the refrigerator and will help to emit the heat collected from within the refrigerator out into the surrounding air.


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

Right when an evaporator is not working, it is time to hire a professional. Do not wait too long.

Expansion Device

Liquified refrigerant is transferred within a capillary tube which serves as an expansion device to cool the gas, thereby turning the gas back into a liquid.


A refrigerator thermostat regulates the temperature inside the refrigerator, starting a new cooling cycle when needed.

A thermostat in a refrigerator is prone to issues. Troubleshoot and call a repairman in Texas for repair right when a problem happens.

How Does Refrigeration Work?

1. Once the temperature inside a refrigerator goes higher than the set point sensors notify the compressor to begin, and the cooling cycle begins. The unit attracts the cool liquified refrigerant, then pressurizes and condenses the refrigerant, and raises the temperature, so it can turn into a gas form.

2. The compressor unit guides the heated gas towards the condenser coils on the outside of the unit, where it comes in contact with the lower temperature in the room and reverts back to a liquid form.

3. The cooled liquified gas continues on its trip towards the refrigerator evaporator, traveling through the coils within the refrigerator and top freezer compartment.

4. The liquid then absorbs the heated air from the interior of the refrigerator, thereby lowering the temperature back to the correct final point.

5. The refrigerant then will evaporate, and turns back into a gas state, and then returns to the compressor unit to continue the cooling cycle.

Refrigeration is often used in a lot of applications and large appliances, this includes heat pumps, AC units, refrigerators and freezers. By contracting heat from a single location and then transferring it to elsewhere the cycle of refrigeration helps cooling your home, provides a perfect storage space for perishable food, and also helps with the manufacturing and storage of a lot of different products and materials.

Need Refrigerator Repair?

Think your refrigerator require repair? You can schedule an appointment with Donaldson Appliance Repair.

Donaldson Appliance Repair can repair all major brands and models of refrigerators – including industrial models, stand-alone and side-by-side.Our experienced repairman in Texas are trained to fix cooling problems, ice makers, problems with condensation, puddles and leaks, light bulbs, digital controls, smart controls and other issues. We everything about refrigerator repair!