Here are some refrigerator troubleshooting tips to help you zero in on the problem if you notice your fridge not cooling. … Side x Side, Top ‘n Bottom, French Door– doesn’t matter what kind of refrigerator you have, it will have an evaporator coil. Let’s take a look at each type: A forced convection refrigerator evaporator helps force the liquid that needs to be cooled down through a pump or fan over the refrigerator evaporator. When you think about the different construction types of refrigerator evaporators, you’ll find three construction types. Frigid air was pumped mainly into the freezer compartment. A build-up of frost can reduce the cooling ability of your refrigerator and cause damages to the units. Superheat is the temperature (sensible heat) gained between the point that all of the liquid boiled off in the evaporator coil and the suction line at the outlet of the coil. The three main factors that play a role in which construction type is used in a refrigerator system: refrigerant and liquid-vapor, temperature, and pressure drop. In the domestic refrigerators the evaporators are commonly known as the freezers since the ice is made in these compartments. How Does a Refrigerator Work? Here’s how it works: Cold liquid refrigerant flows into the evaporator coils, which are inside the refrigerator. The evaporator draws heat from the region that is to be cooled. It functions closely with the damper assembly of your refrigerator that is responsible for controlling how much cold air gets to be distributed into the fresh food compartment of your refrigerator. Alibaba.com offers 6,906 refrigerator evaporator products. The expansion valve controls the amount of cooled refrigerant gas that’s released into the refrigerator evaporator. Once you have the screws out of the rear panel, it will probably slide out... 3. The evaporator fan motor is an electronic component, so you’ll need to make sure there’s no... 2. For many people the evaporator is the main part of the refrigeration system and they consider other parts as less useful. It consists of finned tubes (made of metals with high thermal conductivity to maximize heat transfer) that absorb heat blown through a coil by a fan. This is the part that actually cools the stuff kept inside a refrigerator. The evaporator fan blade is used to circulate air through the freezer and fresh food compartments. How a Refrigerator Works. This allowed for only one configuration, the top freezer refrigerator. All Rights Reserved. The evaporators are used for wide variety of diverse applications in refrigeration and air conditioning processes and hence they are available in wide variety of shapes, sizes and designs. Product recommendations not personally owned are based on the author’s knowledge of the company, product, reliability, and reputation. Find Dual Evaporator Cooling System refrigerators at Lowe's today. If so, there could be an obstruction in one of the fridge’s two fans. Dry the inside of the refrigerator and wipe off the refrigerator evaporator coils too. In most cases, the warm... My name is Paul (that’s my little helper, Mason, in the picture with me) and I am a bit of a fanatic when it comes to making sure my home is energy efficient. As an Amazon Associate this website earns from qualifying purchases. The basic function of an evaporator in the refrigerator system is to remove the heat from the water, air, and other substances present in the refrigerator. The plate surface evaporators are commonly used in the household refrigerators. An evaporator with other major components in the refrigerator system, such as condenser, expansion device, and compressor help in maintaining the cooling of the refrigerators. This construction type of a refrigerator evaporator is designed so the evaporator’s entire surface is in contact with the evaporating refrigerant found inside the refrigerator system. Plug the unit back in and set the thermostat to the desired temperature and replace all the food after the unit has reached a temperature at or below 42 degrees F. Remove all food from the refrigerator, along with all the baskets and trays. Remove the baskets and trays from the refrigerator too. The evaporator fan blows air through the evaporator before circulating cooled air to the freezer and refrigerator compartment. 47. Over the past two decades, my family has rehabbed houses and contracted new home builds and I've learned a lot along the way. When doing a manual defrost, you need to remove the ice from the freezer and remove all food from the unit. In the large refrigeration and air conditioning plants the evaporator is used for chilling the water. The evaporator motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Ultra Durable 240369701 Refrigerator Evaporator Fan Motor Replacement part by Blue Stars - Exact Fit for Frigidaire Kenmore Electrolux Refrigerators - Replaces AP4700070 PS3419839 5303918549. Working Of Plate Evaporator : Condenser supplies fluid like refrigerant to the plate evaporator. The chart lists the wet bulb temperature for various conditions. Refrigeration is an essential food storage technique in developed countries. Refrigerators help keep water and food cold and fresh. Side x Side, Top ‘n Bottom, French Door– doesn’t matter what kind of refrigerator you have, it will have an evaporator coil. It receives the air coming from the evaporator coil and proceeds to circulate the air into the whole unit. The evaporators are used for wi… The evaporator is the aluminum coil hidden behind a panel in the freezer compartment that makes all the cold air in your fridge. Set the refrigerator thermostat to the desired temperature for both the refrigerator and freezer. Item #916724. That evaporator coil is supposed to run at a temperature somewhere around -10℉. The refrigerator evaporator is one part of the refrigeration cycle that makes the inside of your refrigerator cold. Dry the inside of the freezer unit and wipe off the evaporator coils with a soft cloth. Open the doors to let warm air circulate in both the refrigerator and freezer. A refrigerator evaporator works alongside other refrigerator system components,... Continue Reading My name is Paul (that’s my little helper, Mason, in the picture with me) and I am a bit of a fanatic when it comes to making sure my home is energy efficient. What am I to do? So if it is 90°F (32.2°C) outside and the relative humidity is 50% then coldest a direct evaporative refrigerator … In the refrigeration cycle, there are five basic components: fluid refrigerant; a compressor, which controls the flow of refrigerant; the condenser coils (on the outside of the fridge); the evaporator coils (on the inside of the … The purpose of the evaporator fan in a refrigerator is to circulate cold air from the evaporator coils throughout the food storage compartments. The goal of this website is to share with you all of the helpful tips and solutions that I have found so that you can ensure an energy efficient home for you and your family. The evaporators used for the refrigeration and the air conditioning applications have different types of construction depending on the application. The evaporator coils sit in the back of the freezer compartment of a refrigerator and look like a radiator. Based on their construction the various types of evaporators are: 1. Shop refrigerators and a variety of appliances products online at Lowes.com. The refrigerator evaporator plays a huge role in the cooling system of a refrigerator. In such cases shell and tube type of heat exchangers are used as the evaporators. Here's What You Need to Know, 4 Most Common HVAC Issues & How to Fix Them, Commercial Applications & Electrical Projects, Fluid Mechanics & How it Relates to Mechanical Engineering, Hobbyist & DIY Electronic Devices & Circuits, Naval Architecture & Ship Design for Marine Engineers, Book: Principle of Refrigeration by Roy J.. Dossat, 4th Edition, Printice Hall. In this refrigerator, the evaporator fan motor has a control board inside the motor casing, so we won’t be able to check for continuity. Taking care of your refrigerator by performing maintenance regularly can extend your refrigerator’s life and improve the unit’s performance. Copyright © 2020 Bright Hub PM. Push towels under the unit, especially under the door, so it will collect water during the defrosting process. Condensation in a refrigerator happens when moisture-laden, warm air cools. After the refrigerant gas has gone through the condenser coils located at the back of the refrigerator, it starts to cool down and turn into a liquid. Replace the Refrigerator Evaporator Fan. I share my hard-learned lessons so that you can save time and money by not repeating my mistakes. If you managed to achieve 100% efficiency with your evaporative refrigerator, this would be the coldest it could get. Food stays fresher in a cold refrigerator because the cold air slows bacteria’s formation on the food, which means that it takes longer for the food to grow worse. The present invention is provided in view of the background information presented above, and an object is to provide a refrigerator having a high cooling efficiency by increasing the heat conduction rate in the evaporator. The evap fan in the freezer blows the cold air into the refrigerator to cool it down. First, the evaporator must operate at cold temperatures to keep food frozen. One of the most common culprits is a broken evaporator fan motor, and it will make a lot of noise when it’s not operating correctly. Why Does My Refrigerator Keep Freezing Up? ... 26.2-cu ft 4-Door 36-in French Door Refrigerator with Exterior Drawer - Fingerprint Resistant Stainless Steel. It functions closely with the damper assembly of your refrigerator that is responsible for controlling how much cold air gets to be distributed into the fresh food compartment of your refrigerator. In the refrigeration cycle, there are five basic components: fluid refrigerant; a compressor, which controls the flow of refrigerant; the condenser coils (on the outside of the fridge); the evaporator coils (on the inside of the fridge… One kind of evaporator is a kind of radiator coil used in a closed compressor driven circulation of a liquid coolant. When it comes down to the refrigerator system, the refrigerator evaporator plays a big role in refrigerator cooling. However, older refrigerators require the manual removal of frost from the freezer and the evaporator coil. It is in the evaporators where the actual cooling effect takes place in the refrigeration and the air conditioning systems. It is typically mounted onto an evaporator fan assembly. Uses. Why Is My Refrigerator Drain Pan Full of Water? The basic function of a refrigerator evaporator is to remove heat from the air, water, and other items inside the refrigerator. 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