How A Refrigerator Works

In olden days when refrigerators where not available, people used different techniques to preserve their food. Salting, pickling, and canning were some of the ways used by people to keep their food fresh for longer periods of time. Today, we use advanced technology to keep our food fresh longer. The fancy piece of technology that preserves our food is the refrigerator. In this article, we will explain how this household appliance works.

To understand the working of the refrigerator, you must know the Second Law of Thermodynamics. This law states that when two objects of different temperatures come in contact with each other, the object of lower temperature will become warmer and the object of higher temperature will become cooler. You must also know another important principle which states that when gas expands, it becomes colder in temperature. If you have understood these two principles, it becomes easy to understand the working of the refrigerator.

When understanding the working of a refrigerator, the first part you should know about is the refrigerant. This is the part used by the residential appliance to maintain the temperature inside the machine. Earlier, Freon was used as a refrigerant, but today, most manufacturers use HFC or ammonia. When the temperature and pressure of the liquid refrigerant changes; it lowers the temperature inside the refrigerator. When the refrigerant evaporates at low temperature, it will help in reducing the temperature inside refrigerator.

The next part that is responsible for cooling the refrigerator is the evaporator. This part absorbs the heat present inside the house appliance. You must not forget the heating coils that cover the entire back of the machine. These coils carry the refrigerant throughout the refrigerator. The compressor, which is powered by the motor, is responsible for raising the pressure of refrigerant. This helps in increasing the temperature inside the machine. The condenser is responsible for condensing the vaporized refrigerant and converts it into liquid, which lowers the temperature inside the machine.

Modern refrigerators have a cycle which alters the temperature, state of matter, and the pressure of the refrigerant. When the refrigerator is working, the refrigerant, which is in the gaseous state, passes through the compressor. As the refrigerant is compressed, it increases in pressure and temperature, and turns into heated vapor. The refrigerant then passes through the coils where the temperature of the refrigerant decreases. It then passes through the condenser which again reduces the temperature of the refrigerant. This converts the gaseous refrigerant into liquid refrigerant. The liquid refrigerant then passes through the expansion valve which increases the pressure and causes some evaporation. During this process, the refrigerant absorbs the heat from the food kept in the refrigerator and cools it.

Understanding the working of the refrigerator will help you carry out simple appliance repair San Antonio without professional help. However, for any major problem with the machine, it is best to get help from a professional fridge repairman. Companies that offer refrigerator repair may also offer oven repair, microwave repair, stove repair, dishwasher repair, washing machine repair, and dryer repair. When there is a problem with your household appliance, their dryer service technician, washer technician, or any other appliance repair technician will visit your home to repair or service the product.



Things To Know Before Any Appliance Repair

appliance repairHome appliances will always be useful in our busy lives but will at one time or another need some repair when they malfunction. Though appliance repair may be cheaper than replacing your refrigerator, washer and other home appliances, much thought needs to be given into the idea of fixing your expensive machine.

Here are some things to think about before you repair your household appliance:


Genuine household appliances come with warranties. If your appliance is broken and its warranty has not yet expired, you can have it fixed free of charge or at a reduced price by a service technician from a factory-authorized repair shop shown in your warranty. Warranties can therefore save you from buying expensive replacement parts that may even be more costly than a new appliance.

Do-it-yourself (DIY) vs professional appliance repair

There are also cases whereby your appliance’s warranty has already expired, meaning that it is no longer covered. You may want to want to repair it yourself with the aid of a service manual or make use of an appliance repair West Palm Beach Florida technician who can visit your house for the service. If you find a DIY repair idea unreliable, you can still consider the services of a reputable appliance repair company. Ensure that the company is licensed and that the repairman working for the company has right skills and training. You can conveniently find a professional repairman in your residential area online.

Age of appliance

When you decide to repair your appliance, you should consider its age. Note that most household appliances have an average lifespan and once their lifecycle has passed, it would be better to replace them. Appliance repair service will however be necessary for particular high-end appliances or antiques as their replacement can be very expensive.


Repairing your useful household appliance can sometimes be cheaper than buying a new one. Appliance repair can be rewarding if your appliance is under warranty, has minor repairs or is a unique model hard to replace. The idea of replacement is however not far if your appliance is beyond its lifecycle, has expired warranty or needs major repairs that would cost more than half the cost of a new appliance.

With these factors in mind, the decision of having your home appliances repaired when they break down will not be hard to make. At least you will be able to make some savings where you can and make use of a professional appliance repair company with technical know-how on specific appliance repair.

Top Signs That You Need Home Appliance Repairs

Realizing when you are in need of home appliance repairs can help you a lot when it comes to saving money. They may help you economize as fixing a broken appliance at the beginning will ensure you do not have to make a costly replacement.  You should therefore be on the lookout for a number of signs that will inform you your appliances need repair.

There are some obvious signs you can look out for. For one thing, your home appliances might fail to work all together. Perhaps your dish washer will not turn on. In such a case, you know it is time to opt for repairs. While you might think that putting of this repair and washing dishes by hand may save you some money, the truth of the matter is that it might result in you spending more money on water bills.

If it is obvious that your appliance is broken, be it a dish washer or another kitchen appliance, it is vital that you secure their repair as soon as possible. However, some signs are not so obvious. Some appliances will turn on but fail to function in the right way. This can cause you a lot of inconvenience as well as increase your bills. You should thus look for signs that your appliances are working to the best of their ability. If not, they need some repairs.

One of the major signs that your appliances are faulty can be found in your overall energy bills. You may not notice a drier taking longer to dry your clothes than usual. However, if your electricity bills are on the rise, this is a clear indication. Once you notice that bills are rising, you can check around your household to make sure your all your appliances are performing in good condition.