
The refrigerator is one of the few kitchen appliances that operates without interruption. It runs 24 hours a day, 7 days a week, and 365 days a year to keep your food fresh and safe. This essential household appliance keeps your food fresh, your drinks cold, and your leftovers safe.
Most refrigerators and freezers today come ready to plug in and use. However, understanding how they work can help you identify early signs of damage or future refrigerator repair needs.
Whether you own a standard unit or a luxury brand such as a Sub-Zero refrigerator, it’s important to understand the refrigerator parts. Knowing how these parts interact can keep your fridge running smoothly and prevents refrigerator not cooling or ice buildup.
Key Components of a Refrigerator
Below are the essential refrigerator components and what they do:
Compressor
The compressor acts as the engine of your refrigerator. It compresses the refrigerant to increase its pressure and temperature, beginning the cooling cycle.
Refrigerant
The refrigerant flows through the system to absorb and release heat. As it cools, it condenses into liquid form to pass through the expansion valve. Once it enters a low-pressure zone, it expands and evaporates. During evaporation, the refrigerant absorbs heat—this is what creates the cold air that keeps your food chilled.
Expansion Valve / Evaporator
The expansion valve, also referred to as the evaporator, is responsible for allowing the refrigerant to expand. It also absorbs the heat from inside the refrigerator. This is essential to maintain a temperature-controlled environment and efficient air circulation.
Heat Exchange Pipes
Located on the back or sides of the refrigerator, these pipes help the refrigerant release the heat gathered during the cycle. This step is vital for consistent operation and helps avoid refrigerator breakdowns.
How Your Refrigerator Keeps Cool
How does the refrigerator’s cooling cycle function?
The process starts when the compressor raises the pressure and temperature of the refrigerant. Then, the heat exchange pipes help release the pressure heat. As the refrigerant cools, it turns into liquid and moves through the expansion valve. At this stage, it moves into a low-pressure zone where it undergoes evaporation.
This evaporation absorbs heat from inside the refrigerator and freezer, creating the cold temperature needed to preserve food. The process repeats, allowing your fridge to operate without interruption.
Regular refrigerator maintenance, like cleaning the condenser coils and checking the water filter, keeps this process efficient. By doing so you can extend the lifespan of your unit.
Common Refrigerator Issues
Despite advanced designs from major brands, problems can still occur. If your fridge is not cooling, you may be dealing with a faulty compressor, blocked coils, or a broken condenser fan. Other issues like mold in the refrigerator, refrigerator fungus, or odors can result from poor airflow and infrequent cleaning.
For odor control, placing an open box of baking soda in the fridge helps neutralize smells. For stainless steel refrigerators, it’s important to follow proper cleaning methods to avoid damage. You can check out our guide on how to clean stainless steel refrigerators for tips.
If you notice these problems, it’s time to call for professional refrigerator service near you.
Trust C&W Appliance Service for Expert Repairs
Whether you own a standard model or premium units like Sub-Zero, True, or U-Line wine coolers, C&W Appliance Service has you covered. if you’re living around Dallas or Austin, we provide refrigerator repair near you and ensure customer satisfaction in each visit.
Our appliance repair company services all appliance brands, providing high-quality repairs, tune-ups, and customer service that puts your needs first. We also handle related appliance repair services, including ice maker fixes, oven repairs, and more.
Schedule Your Refrigerator Repair Today
If your fridge is not cooling, leaking, or showing signs of wear, don’t wait until food spoils or components fail. Schedule an appointment with a trained refrigerator technician from C&W Appliance Service.
We proudly serve Dallas, Fort Worth, San Antonio, Austin, and nearby areas. Whether it’s a routine refrigerator maintenance check or an emergency fridge repair, we’re ready to help.
Contact us today to keep your refrigerator performing at its best.


