How Does a Refrigerator Work?

Most homeowners do not give much thought to the inner workings of a refrigerator before it breaks down, or before it comes time to buy a new one. To guarantee you get the most use possible from this invaluable appliance it can be extremely good to understand how it keeps food cold—and Witt Appliance Repair is here to help.

Read on to find out everything you need to know about how a refrigerator works, how it cools your food and if it is time to connect with refrigerator repair.

Parts of a Refrigerator

You will not find many houses that don’t have a refrigerator in the kitchen. It’s been a must-own kitchen appliance for many years now. A household refrigerator stores your food and drinks at the right temperature, in order to prevent rotting and slow down the growth of harmful bacteria. The cycle of refrigeration works by distributing the warmth from the inside of the refrigerator to the exterior, by relying on the principles of condensation and evaporation.

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


The compressor is a combo of a pump and a motor, and it’s need for circulation of refrigerant throughout the system.
A compressor is an integral piece of a refrigerator. You should enlist a professional company if the compressor stops working.


The condenser is located on the rear exterior wall of the appliance and will help to disperse the heat absorbed inside the refrigerator out in the air.


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

Once the evaporator isn’t working, it is time to call a professional. You should not wait too long.

Expansion Device

Liquified refrigerant is transferred within a capillary tube that works as an expansion tool to cool the gas inside, turning the gas back into liquid.


A refrigerator thermostat exists to regulate the temperature throughout the refrigerator, starting a new cooling cycle when necessary.

A thermostat in a refrigerator is often prone to breaking. Troubleshoot and hire a technician in CITY for service right when an issue happens.

How Does Refrigeration Work?

1. Right when the temperature in the interior of a refrigerator is higher than the set point sensors notify the refrigerator compressor to begin, and the next cooling period begins. The refrigerator collects the cool liquid refrigerant, then condenses and pressurizes it, and raises the temperature, turning it into a gas form.

2. The compressor unit guides the warm gas towards the condenser coils located on the rear of the appliance, where it comes in contact with warmer air temperature in the kitchen and returns back to a liquified form.

3. The cooled liquid then continues its trip to the evaporator, pushing through the coils within the refrigerator and top freezer.

4. The liquid absorbs the warm air from within the refrigerator, lowering the temperature until it has reached the correct set point.

5. The coolant then will evaporate, and will return back to a gas, and returns to the refrigerator compressor unit to continue the cooling cycle.

Refrigeration is used in quite a few applications and household appliances, this includes heat pumps, air conditioners, refrigerators and residential freezers. By removing heat from a single area and distributing it to another the continuous cycle of refrigeration will help cooling a home, provides a perfect space for food that is perishable, and also helps with the manufacturing and storage of several different products and materials.

Need Refrigerator Repair?

Does your refrigerator require repair? You can schedule an appointment with Witt Appliance Repair.

Witt Appliance Repair is able to service all popular brands of refrigerators – that includes industrial models, stand-alone and side-by-side.Our service technicians in CITY undergo training to repair and troubleshoot issues with cooling, ice makers, condensation issues, water puddles and leaks, lighting, digital panels, smart systems and other malfunctions. We know all about refrigerator repair!