Question about Jenn-Air JSD2789GEW Side by Side Refrigerator

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My Jen Air Refridgerator is not cooling But Freezer is working. But My Coils in my freezer is frosted up, when I defrost the coils the refridgerator cools again for a few days until The coils frost up again. What can I do?

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  • lifeilove13 Mar 28, 2011

    I did this already and I posted in my Question. I also replaced the defrost Timer in top pf Fridge but still does same thing? Any other sugestions?

  • lifeilove13 Mar 28, 2011

    My Jen Air Refridgerator is not cooling But Freezer is working. But My Coils in my freezer is frosted up, when I defrost the coils the refridgerator cools again for a few days until The coils frost up again. What can I do? I also replaced the defrost timer in top of fridge side. What can I do?

  • Juan Rodriguez Dec 18, 2012

    your defrost thermostat may have given up the ghost.

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Hi lifeilove13,

This issue is usually cause by a defrost problem. First thing that you need to check is the freezer area. Please look at the back panel inside the freezer. If you notice a frost covering at the back panel, you have a defrost problem.

The only part inside the whole refrigerator that "get cold" are the coils inside the Freezer. The coils need to stay free from excess frost build up so that air can pass through the coils and will reach the refrigerator section. The compressor and fans will shut off and machine will go into defrost mode every eight hours or depending on the type of defrost timer or control you have.

When the refrigerator is in defrost there is a heater that is tied into the evaporator coils inside the freezer that comes on. This heater is behind the rear panel inside the freezer where the evaporator coils are located. It melts the frost that has accumulated over the course of time. After about thirty minutes the machine comes out of defrost and goes back to normal operation.

The first thing that you can do to get the machine running is to remove the rear panel of the freezer. Please remove all the frost ice that has built up. The best method is to pour hot water over the coils. The water will drain out the freezer through the drain hole in the bottom of the freezer under the evaporator coils.

Once all the frost is gone, you could put the machine back together and it would work fine. For a few days, until the frost has developed again due to the defrost issue. That would only be a temporary fix.

Hope it helps.

Thank you for using FixYa.

Posted on Mar 28, 2011

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Frigidaire Refridgerator not cooling. Worked for about 2 weeks after replacing defroster


The first thing you want to do is open the freezer and see if the fan inside there is running. The reason is the freezer cools the refrigerator side by circulating air from the freezer. If the fan is running then your problem is one or more parts of the defrost system is malfunctioned and in return your problem arises. There are three parts to the system, the defrost timer or in some cases control board, defrost thermostat also known as a bi-metal, and the defrost heater. The defrost system is set up to operate as so. The defrost timer or control board will turn the machine off, in some cases every 8 hours, some 12. During this time period the defrost heaters, located behind the freezer wall and rest underneath the evaporator, yet wires to them run up the side of it, are energized and emit heat that raises upward to melt the ice that has formed on the evaporator coils. The bi-metal or defrost thermostat is at the top of the evaporator. When the heat from the heater starts to reach the bi-metal, it breaks the circuit turning the heater off. The whole purpose of this is because the freezer cool the refridgerator side by drawing air across the coils and blowing to the other side via the evap fan motor. In my opinion, if you change one part of the defrost system change them all because usually when one part fails another will follow, so save yourself the time and the food loss, the cost difference is minute

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Freezer is not freezing and refridgerator is not cold enough


Hi,

A refrigerator or freezer that is cooling, but cooling poorly, may have a problem in one of several areas:

Evaporator coils
Condenser
Poor cooling is often the result of a heavy frost build-up on the evaporator coils or a condenser that is clogged with dust, lint, and dirt.

Evaporator coils Poor cooling is often the result of a heavy frost build-up on the evaporator coils. You can't see these coils without removing a panel on the inside of your freezer. A sure sign that there is a build-up is the presence of any frost or ice build-up on the inside walls, floor, or ceiling of the freezer. Such a frost build-up usually indicates a problem in the self-defrosting system or damaged door gaskets.

The refrigerator is supposed to self-defrost approximately four times in every 24 hour period. If one of the components in the self-defrosting system fails, the refrigerator continues to try to cool. Eventually, though, so much frost builds up on the evaporator coils that the circulating fan can't draw air over the coils. There may still be a small amount of cooling because the coils are icy, but with no air flow over the coils, cooling in the refrigerator compartment is quite limited.

Here's an inexpensive, though inconvenient, way to determine if the problem is with the self-defrosting system. Remove all of the perishable food from the refrigerator and freezer, turn the thermostat in the refrigerator to Off, and leave the doors open for 24 to 48 hours. (Be sure to have several towels ready in case the melting frost and ice causes the drip pan to overflow). This allows the refrigerator to defrost "manually." When the frost and ice build-up has completely melted away, turn the thermostat back to a normal setting. If the refrigerator then cools properly, it indicates a problem with one of three components in the self-defrosting system:

  • The defrost timer


  • The defrost thermostat (also called the bi-metal switch)


  • The defrost heater


If it still does not cool properly, there may be a problem with the refrigerant level or the compressor. You may need to consult with a qualified appliance repair technician to further diagnose the problem

Condenser Self-defrosting refrigerators all have a set of coils and a cooling fan, usually under the refrigerator, that need to be cleaned regularly. If these coils get coated with dust, dirt or lint, the refrigerator may not cool properly. The coils may appear to be a thin, black, wide radiator-like device behind the lower kick-panel. To clean them, disconnect the refrigerator from the power source, use a refrigerator condenser brush (see the Appliance Accessories section) and your vacuum cleaner to clean the coils of any lint, pet hair, etc. You may not be able to get to all of the condenser from the front, it may be necessary to clean the remainder of the condenser from the rear of the refrigerator.



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2 Answers

Freezer side works fine but the fridge side seems to be getting warmer even with temp dial set all the way cold. No warm air flow from bottom. is condenser bad?


you hae an issue with the defrost cycle in behind the panel in the freezer how the defrost system works Here is what's happening when you have a malfunction in the defrost system.
  • Air cannot circulate from the freezer(where the cold happens basically) to the fresh food section.
  • Your refrigerator will run constantly to try to cool the fresh food section. This will develop a new set of problems with your refrigerator. More on that later....
  • Excess frost builds up within the coils inside the freezer. This is what is blocking the air flow to the fresh food section
  • Usually you will notice the icemaker will stop making ice. Poor air flow and not quite cold enough temperatures in the freezer cause this
  • Water will not come through the dispenser on the door. Cold air settles, the water resovoir will freeze.
  • Compressor may overheat and shut off. This is when you hear, click, click, click. Not good
  • Ice Cream in the Freezer will start to get soft. That's really not that bad. lol
What can you do about this. Let me explain the defrost system in general so you get an understanding of what is going on.
The coils inside the freezer are the only part inside the whole refrigerator that "get cold". They need to stay free from excess frost build up so that air can pass through the coils and reach the refrigerator section of your refrigerator. Every eight hours or so, depending on the type of defrost timer or control you have, the compressor and fans will shut off and the machine will go into defrost mode.When the refrigerator is in defrost there is a heater that is tied into the evaporator coils inside the freezer that comes on. This heater is behind the rear panel inside the freezer where the evaporator coils are located. It melts the frost that has accumulated over the course of time. After about thirty minutes the machine comes out of defrost and goes back to normal operation.
Now the air can continue to pass through the coils and keep the freezer frozen and the refrigerator cool the defrost cycle is made up of 4 functioning parts the defrost timer, the defrost heater, the defrost thermostat and the fan .I will go through what each of these do
The Defrost timer Some refrigerators have a defrost timer. This type works like a clock. Every eight hours or so the machine hits the defrost spot and that's when defrost occurs Some refrigerators have an Adaptive Defrost Control. This is what makes a refrigerator energy efficient. It varys the length of time it takes the machine to go into defrost.So instead of energy hogging heater coming on every 8 hrs it could be different due to how many times you open the doors and how many times the compressor has run some models dont have a defrost timer and instead use a control board that works just like the timer it is usually located in the rear of the machine under a metal panel.
Defrost Thermostat
This is the component that controls how long the heater stays on when the machine is in defrost mode. Say the defrost cycle is thirty minutes, the heater may only be on for ten of those thirty minutes on the timer controls. On Adaptive Defrost Controls, when the heater shuts off, shortly after the machine exits defrost mode. Basically if the heater only stays on for ten minutes, the whole defrost cycle will only be about 12 or 13 minutes long.
Basically when the heater comes on, it starts to melt the frost on the evaporator. Once all the ice and frost is gone, the temperature behind the panel will start to rise. Once the temperature behind the panel rises to a certain temperature, the thermostat will break the current of electricity going to the heater. Bam, it shuts off and prevents your freezer from becoming a sauna, or an oven. I'm sure you get the drift. The heater is on the bottom of the evaporator coils and the defrost thermostat sits on top of the evaporator coils.
Defrost Heater
This one should be pretty simple. By now if you have read this far you should already know what this does and how important is it. Some defrost heaters are a coil of wire in a glass tube under the evaporator coils. Works like a light bulb basically. The other style looks like the bake element in your stove. They both get red hot either way and melt the frost.
The Fan
Some dont consider this to be part of the defrost cycle but if the fan is not working then the air is trapped inside the freezer and sometimes can cause the same ice up situation which is why I say to always look at the fan first
Continuity tests can be done to check the defrost thermostat and the defrost heater you can also do an ohms test between terminal 1 and 3 on your defrost timer which will tell if the motor section of the timer is good then you can check between terminals 1 and 4 to by doing a continiuity test which is to the compressor and tells the compressor how long to run if you turn the timer till you hear the click it goes into position to and you can do a continuity test on the heater between terminals 1 and 2 and then you can do a continuty test on these two terminals as well And here is the guide to how your defrost cycle works if you have any further questions message me back and please remember to rank how this opinion has helped it allows me to help others in similar situations Thanks Rick

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