How Does a Refrigerator Work?

The majority of homeowners don’t give much thought to the parts of a refrigerator before it stops cooling, or before it comes time to buy a new model. In order to get the most from this invaluable appliance it can be very useful to know how it keeps your food and drinks cool—and Rockville Appliance Repair is here to help.

Read on to learn what you should understand about how a refrigerator works, how it cools your food and drinks and if it is the right time to hire professional refrigerator repair Rockville.

Parts of a Refrigerator

There are not too many homes that do not feature a refrigerator in the kitchen. It’s been a must-have kitchen appliance for several years. A household refrigerator stores your food at the best temperature, in order to prevent rotting and limit bacteria. The concept of refrigeration starts by moving the warmth from inside of the refrigerator to the exterior, by relying on the principles of condensation and evaporation.

The parts of a refrigerator are below. For questions or service call Rockville Appliance Repair:


A refrigerator compressor is a combo of a pump and a motor, and it’s responsible for the circulation of refrigerant throughout the cooling system.
A compressor is an important part of a refrigerator. Homeowners should call on a professional company if the compressor is broken.


A refrigerator condenser is located on the back exterior wall of the appliance and will help to emit the heat absorbed from within the refrigerator then out in the air.


A refrigerator evaporator is located in the inside of a refrigerator where absorbs warmth trapped within it, thereby reducing the interior temperature.

Right when the evaporator isn’t working, it is time to hire a professional. Do not wait too long.

Expansion Device

Liquid refrigerant is transported within a capillary tube that acts as an expansion tool as it cools the gas inside, transforming the gas into liquid.


The thermostat exists to regulate the current temperature inside the refrigerator, engaging a new cooling period when it is appropriate.

The thermostat in a refrigerator is prone to malfunction. Troubleshoot and call a repairman in Rockville for service right when an issue occurs.

How Does Refrigeration Work?

1. Once the temperature in the interior of a refrigerator is higher than the set point sensors alert the refrigerator compressor to start, and then the cooling cycle starts. The unit collects the cold liquified refrigerant, condenses and pressurizes the refrigerant, and increases the temperature, turning it into a gas.

2. The compressor unit guides the heated gas towards the refrigerator condenser coils located on the rear of the unit, at which point it comes in contact with the lower air temperature in the home and returns to a liquified state.

3. The cool refrigerant continues its journey towards the evaporator, finding its way through the many coils on the interior of the appliance and top freezer section.

4. The coolant then absorbs the hot air from inside the appliance, lowering the temperature down to the best set point.

5. The liquid will evaporate, and will turn back into a gas, and returns to the compressor unit so it can continue the cooling cycle.

Refrigeration is often used in quite a few applications and household appliances, including heat pumps, AC units, refrigerators and residential freezers. By contracting heat from a single area and relocating it to another the cycle of refrigeration will help cooling your house, creates a optimal space for perishable food, and helps with the manufacturing and storage of a lot of different common products and materials.

Need Refrigerator Repair?

Think your refrigerator need professional attention? Time to schedule an appointment with Rockville Appliance Repair.

Rockville Appliance Repair will service nearly all standard brands of refrigerators – that includes industrial models, side-by-side and stand-alone.Our experienced service technicians in Rockville complete training to troubleshoot and repair cooling issues, malfunctioning ice makers, issues with condensation, water puddles and leaks, lighting, digital panels, smart synchronization and other malfunctions. We know all about refrigerator repair! 100% satisfaction guaranteed!