6,792,769 and 7,024,878). The tech had to cut the connector off the replacement motor and re-connect using screw type wire connectors. A thermostat called a COLD CONTROL will cycle the cooling system on and off to keep the temperature inside your fridge within a certain range. It runs in a counterclockwise position regardless..Which is correct for a … This seems to be contrary to the way the air moves through the front grill. Can the direction of rotation of the motor be reversed by reversing the leads? Hi people! This fan is called the EVAPORATOR FAN. As the air flows across the outside of the evaporator, it gives up its excess heat to Freon circulating inside the evaporator. Think of it as REMOVING HEAT from whatever you put in it. Design. It allows air cir-culation and the temperature decreases rapidly after door opening. Depending on the model and make of the refrigerator, it will have air vents in a few spots. The air is drawn in through an inlet duct and passed through the evaporator where it is cooled, the air is then circulated throughout the cabinet via a series of ducts and vents. The refrigerator condenser fan plays an essential role in the refrigeration cycle, but not all … 99 The wife's solution is to get a new refrig. The most important way for getting your RV refrigerator to cool correct, is good flow of air blowing up through the condenser fins. 3) Heat will continue to flow from the warmer object to the colder object The Freon in the evaporator runs at a very cold temperature, somewhere between about 9 and 40 degrees below zero, so that the heat will flow out of the air and into the Freon very quickly. Refrigerator Condenser Fan Motor Troubleshooting. ... or the direction of rotation of the fan has been designed to reverse periodically (see U.S. Pat. As the air passes through the heat exchange coil it picks up heat from the hot refrigerant gas via the heat exchanger enabling the condensing process. When the compartment reaches a certain temperature, the terminating thermostat will open and shut off the defrost heater. When the blades turn clockwise, the air is drawn upwards; counterclockwise, and the air is blown straight down. This one is less than 3 years old!! That's also the source of the warm air you might feel blowing out from beneath your fridge while it is running. I''ve been told it should run in a clockwise position, and to switch to obtain the clockwise position. Depending on how old your unit is, you may have rear refrigerator coils or the cooling coils may be on the bottom of the unit. There's always a grill or toe kick at the bottom and vents in the back of the unit — often in more than one spot. The thermostat is a big part of the electrical system within the LG refrigerator and it controls that flow of power to the motors (Evaporator fan, condenser fan, and compressor) that are all part of the cooling system. Having the fan push the air toward the compressor side of the refrig seemed to be contrary to good design and I thought the noise might be coming from the fan blade interacting with the fan shroud. It could have simply continued the existing air direction but I didn't think that would help much so I arranged it to also draw air in on that side, over the condenser etc. If not, either your fan blade is bent the wrong way, or it's the wrong blade. This could be called a "fan forced" refrigerator, whereas manual defrost units rely on colder air lying at the bottom, versus the warm air at the top to achieve adequate cooling. Fans are not used to remove heat from the compartment, they are only used to increase air flow through the condenser fins.Most RV refrigerators need the increased air flow when the out side temps reaches 85 degrees or higher. A tech just replaced the condenser fan motor and I asked about the direction of the air flow through the fan. Eventually it will evaporate away. How often this "defrost cycle" occurs, and how long it lasts, is controlled by a motor-driven mechanical DEFROST TIMER, or by an electronic "computer board" called an ADC (Adaptive Defrost Control). You can not reverse the leads because the wire harness plug can be plugged into the motor only one way. On some models, the warmth from the condenser is used to evaporate the defrost water. The best way to clean that is to shut it off drape wet towels over the condenser and blow high pressure air back through the coils, wow look at that dirt. Air moves at a speed of 1-3.3 m/s. One is under the refrigerator to cool the compressor and force air through the exterior coils. It was no longer cooling. The condensing unit typically has a fan that draws air across the coils to facilitate the needed heat transfer to insure the unit is operating efficiently. Since the freezer is so much colder than the food compartment, most of the cold air that is produced circulates to the freezer compartment. The greater the temperature difference, the faster the heat flow. This type of condenser uses a “V-Flow” direction fan. Easy to install. The food starts to get cooler. 2) Remember that heat always flows FROM something of a HIGHER temperature Another way of fixing a buzzing refrigerator is by placing it … Anyway, here's what happened. To enable all features please, YAF.NET © 2003-2021, Yet Another Forum.NET. Very happy. until their temperatures are equal. the frig will still work if the coil cooling fan stops though it will work harder and could shorten compressor life. (in toward the condenser coils and out over the pan) Can you help with this question. I heard the condenser making a wierd noise and then it shut down. The air flow is currently blowing through toward the condenser motor while drawing the outside air through the coil pulling from right side of the compartment that has the vented slots in the cardboard cover. To prevent too much frost from collecting on the evaporator coils, a self-defrosting refrigerator will actually stop itself for a few minutes every six to twelve hours or so, and melt its own frost. TO something of a LOWER temperature. When I removed the back panel to the refrigerator, the condenser coil fan was not running at all, and the condenser was hot to the touch. The fan in the freezer compartment of a refrigerator affects the operational efficiency of the refrigerator. A typical configuration of such a condenser … I was a new blade that came with the replacement motor. You can adjust that range using one of the dials within your fridge. pull the fridge out. leave it out away from the wall a foot or two. 1. It is wired in series with the heater. Gene, The fan motor is extremely noisy. In some models a CONDENSER FAN is fitted to circulate air across the condenser. The heat rises and melts the frost. If it is not working properly one or more parts of the cooling system will not function. Made-in-China.com has you covered and makes it easy to search for all kinds of Refrigerator Condenser Fan and suppliers in China. Since the air inside the fridge has now absorbed some heat and is warmer than it should be, we need to carry it away from the food, replace it with new cold air and remove the excess heat from it. I am mounting the fan onto the condensor motor with the fan facing towards the back of fridge. A tech just replaced the condenser fan motor and I asked about the direction of the air flow through the fan. It resembles the radiator in your car and acts in much the same manner. That's also the source of the warm air you might feel blowing out from beneath your fridge while it is running. … The same thing about the fan blade. Heat Transfer and Air Flow in a Domestic Refrigerator 447 (horizontal/vertical, top/bottom of the compartment) determines the location of cold and warm zones. What is the proper air direction? On some models, the warmth from the condenser is used to evaporate the defrost water. I went and sprayed it with a shot of water to cool it down and got the fan to turn back on. If you use the old fan blade, it must turn in a direction to cup the air and blow it out with "normal" velocity. (in toward the condenser coils and out over the pan) Can you help with this question. I have Samsung Refrigerator model # RF260BEAESR/AA . It was trying to spin, but would only rotate a tiny bit. Pulling. take the louvered grill off the front and back. (The temperature goes down.). A cleaning system for the condenser of a refrigeration unit, the system comprising: a compressor including a motor, a condenser, a cooling fan including a fan blade; a motor drive system for driving the fan; and control means for running the fan motor drive system at a first selected speed in a forward direction to direct air toward the condenser for a first … Air circulation is very important to heat flow. Does it make any difference which way the fan blade is mounted on the fan? We have cheap bus condenser fan, discount condenser fan, air cooler fan for sale and more to meet your needs. He tried two different motors but both were noisy. The second is inside and moves air around the coils inside the refrigerator. Air temperature is more homo- He said that the flow was toward the compressor (or the left viewed from the back of the refrig). After the Freon loses the excess heat in the condenser, it is de-compressed, or expanded, by simply putting it through a constriction that lets the pressure drop. This readies the Freon to go through the evaporator again, and the cycle begins all over. After removing the fan unit, and replacing the motor, my fridge is now running great, and the freezer is back to super cold. In thinking about the way your refrigerator keeps things cool, there are a few seat-of-the-pants thermodynamic laws that you need to consider: 1) Don't think of your refrigerator as MAKING THINGS COLD. As the food in the fridge gets colder, it gives off less heat, and the air inside the fridge will remain colder. I suspect maybe a fan blade may be the problem. The direction in which a vent fan's blades rotate has an impact on its ability to function properly. The evaporator is SO cold that the humidity from the air will freeze directly onto it, creating FROST. Change direction of refrigerator fan? The Freon gas goes to the COMPRESSOR where it is compressed into a hot gas (remember, when you compress a gas, it gets warmer.) The control for this air door is the other of the two dials within your fridge. Nos. if you have some fans then place a small fan(s) on the floor in the rear blowing air in the direction the ailing fan does. In order to re-use the Freon for cooling more air, the heat that WAS in your food and is NOW in your Freon must somehow be gotten rid of. However, when you opened that door to put the food into the fridge, you also let in a big charge of warm, relatively moist (humid) air. From AppliancePartsPros Parts department : Welcome Guest! In some models a CONDENSER FAN is fitted to circulate air across the condenser. He said that the flow was toward the compressor (or the left viewed from the back of the refrig). Valterra Black RV Refrigerator Fan. The condenser fan runs in a counter clockwise direction. but did not give much thought to where the hot air would exit the housing. The heat from your food, plus whatever heat was added during compression, will flow from the hot Freon in your condenser to the cooler air in your kitchen. As refrigerant flows down the pipes, the fan blows on them and thus cools down air. The timer or ADC stops the compressor (cooling system) and starts an electric DEFROST HEATER located directly beneath the evaporator coils. 4680JB1026H Refrigerator Condenser Cooling Fan Motor, Replace 1330001 AP4440743 PS3523107, Replacement for LG, Kenmore, General, Electric, Hotpoint, RCA 4.8 out of 5 stars 22 $17.99 $ 17 . Electrical Elco Motor 5/10/16/18/25W for Condenser and Evaporator/Evaporative Cooler Fans/Green House/Air Curtains/Machine Cooling Fan FOB Price: US … A condenser unit used in central air conditioning systems typically has a heat exchanger section to cool down and condense incoming refrigerant vapor into liquid, a compressor to raise the pressure of the refrigerant and move it along, and a fan for blowing outside air through the heat exchanger section to cool the refrigerant inside. When I looked at the back of the refrigerator, I could so that the condenser fan was no longer spinning. Any other thoughts? The Freon then flows through the CONDENSER, which is the warm grille you'll find either behind or underneath your refrigerator. These fans are usually exhaust units, and most always "pull" the air out and away from the evaporator. Only a small amount is needed in the food compartment to keep it down to the proper temperature. I still have the back panel off though. See How Refrigerators Work for complete details on the inner workings of refrigerators. Thus, when you put warm food into a cold refrigerator, heat starts flowing from the warm food into the cold air around it. The heat exchanger consists of finned tubes, each being 6-20 mm in diameter, with fins placed 1-3 mm away from each other. This cleaning system for the condenser of a refrigeration unit comprises a compressor including a motor, a condenser, a cooling fan including a motor and a fan blade; and control means for running the fan motor drive system at a first preselected speed in a forward direction to direct air toward the condenser for a first determined period of time and in a reverse direction to direct air … Help. Could it be an out of balance fan blade? I took a chance and ordered this fan motor, and it worked like a charm. This second fan helps provide more even cooling, and also aids in the defrost process. It draws in warm air from all sections of your refrigerator and blows it across the EVAPORATOR, or "COOLING COILS". On most fridges, all the cold air for both the food compartment and the freezer compartment is produced in one evaporator. After replacing, it's starting to cool. This video will walk you through refrigerator fan motor diagnostics for GE electronic refrigerators. SOLVED. This is why airflow is so important inside the fridge. Powerful. Built-in thermostat. All these type motors turn counterclockwise viewed from the back. Better distribution and removal of heat and the entire condenser gets some benefit from it. The refrig sounds like a helicopter flying over the house when it comes on. If I am standing behind the fridge and facing the fan it will be spinning in a counter clockwise direction. This seems to be contrary to the way the air moves through the front grill. A fan is provided inside the fridge to continually circulate internal air. The new condenser fan motor comes with the installation instructions. Move the Fridge Inside an Alcove. If all the frost melts before the defrost timer finishes the defrost cycle, a TERMINATING THERMOSTAT will keep the defrost heater from overheating the evaporator compartment. Copyright © 2005 - EB Publishing Inc. All Rights Reserved. Air circulation is very important to heat flow. This amount is adjusted by a small AIR DOOR in the duct between the evaporator and the food compartment. When I initially added the second fan on the opposite side of the condenser I had the choice of fan air direction. The brewed type is a static refrigerator equipped with a fan (Figure 16.1b). At that point, it was blowing pretty warm air but the fan seemed to be running wierd-- seemed slower. If I put my hand directly in front of the fan I will feel the air blowing towards me and out the back of the fridge. My freezer is cold but my fridge is only slightly cool (around 55f). Typically, axial fans used in a condenser draw ambient air through the heat exchange coil exhausting air out through its mounting guard. If enough frost builds up on the evaporator, air will not be able to flow across it. The frost water is drained away, usually to the little pan that you see beneath your refrigerator in most models.
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