How Does a Refrigerator Work?

The majority of homeowners don’t think too much about the components of a refrigerator before it stops cooling, or it comes time to buy a new model. To ensure you get the most out of this invaluable appliance it can be nice to know how it keeps food and drinks cold—and Lancaster Appliance Repair is here to explain.

Continue reading to learn what you might need to understand about how a refrigerator runs, how it cools your food and if it’s the right time to call refrigerator repair Lancaster.

Parts of a Refrigerator

There aren’t too many houses that do not have a refrigerator inside the kitchen. It has been a must-own appliance for several years. A refrigerator stores food at the optimal temperature, in order to reduce spoiling and limit harmful bacteria. The concept of refrigeration works by transferring the warmth from the interior of the appliance to the outside, by relying on principles of condensation and evaporation.

The standard parts of your refrigerator are. For questions or service call Lancaster Appliance Repair:


The compressor is a combination of a pump and a motor, and it is necessary for circulation of refrigerant throughout the system.
A compressor is a very important piece of a refrigerator. Homeowners should call a professional service if the compressor isn’t working.


A condenser is attached on the rear outside wall of the appliance and helps to release the warmth collected inside the refrigerator then out into the surrounding air.


The evaporator is installed in the interior of the refrigerator where absorbs heat trapped within it, thereby lowering the interior temperature.

Once the evaporator is not working, it is time to enlist a professional. Don’t wait until it’s too late.

Expansion Device

Liquid coolant is transported through a capillary tube that acts as an expansion device to cool the gas inside, turning the gas back into liquid.


The thermostat will regulate the temperature within a refrigerator, engaging the cooling cycle as it is necessary.

The thermostat inside of a refrigerator is very prone to issues. Troubleshoot and call a contractor in Lancaster for repair the moment an issue occurs.

How Does Refrigeration Work?

1. When the temperature inside the refrigerator goes higher than the set point sensors signal the refrigerator compressor to engage, and the next cooling period starts. The unit draws in the cool liquid refrigerant, then pressurizes and condenses it, and increases the temperature, turning it into a gas.

2. The compressor unit directs the warm gas towards the refrigerator condenser coils on the outside of the refrigerator, at which point it comes into contact with warmer temperature in the kitchen and reverts to a liquified form.

3. The cool refrigerant then continues its trip to the evaporator, finding its way through the coils within the appliance and freezer compartment.

4. The refrigerant absorbs the heated air from inside the appliance, thereby reducing the temperature back to the optimal final point.

5. The refrigerant evaporates, and turns back to a gas, and 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 removing warmth from one location and moving it to another the cycle of refrigeration aids in cooling your house, creates a optimal space for perishable food, and also helps with manufacturing and storage of a number of different products and materials.

Need Refrigerator Repair?

Think your refrigerator need repair? You can schedule an appointment with Lancaster Appliance Repair.

Lancaster Appliance Repair will repair most popular brands and models of refrigerators – including commercial models, stand-alone and side-by-side.Our licensed service technicians in Lancaster complete training to troubleshoot and repair cooling issues, broken ice makers, issues with condensation, puddles and leaks, light bulbs, digital panels, smart controls and numerous other problems. We know refrigerator repair!