Kenmore 25.1 cu. ft. Side-By-Side Refrigerator with Rotating Dispenser System Logo
Anonymous Posted on Jun 23, 2012

Ice buildup on evaporator coils

I have replaced the timer and defrost thermostat. During the defrost cycle the heater stays on for about 5-8 mins. I don't think that is enough time to melt the ice. Twice I have removed the back panel and melted all the ice on the evaporator coils and then it would cool properly for about 3 days, then the ice buildup starts again and the refrigerator starts to get warmer. What else could be the problem?

  • 15 more comments 
  • Anonymous Jun 25, 2012

    I have forced the timer to shut off after about 6 hours. I have done that several times and I don't see any ice buildup during the cooling cycle. Could the cooling cycle be lasting too long?

  • Anonymous Jul 04, 2012

    As a last resort I replaced the defrost heaters along with the defrost thermostat again. It worked fine for about a week, then gradually the frig started to warm up again. I tried shortening the cooling cycle by manually turning the timer after about 8 hours hoping that there wouldn't be as much ice buildup. I am totally lost now the only thing left is a new refrigerator which I can't afford at this time. I need some EXPERT advice on this one. Thanks

  • Anonymous Jul 04, 2012

    I removed the back cover and felt the compressor. I was able to keep my hand on it for about 10 seconds before getting too hot to the touch.

  • John Tripp
    John Tripp Jul 04, 2012

    If too hot to keep hand there then this is a start relay, overload and possibly a run capacitor that needs to be replaced. I would not leave the refrigerator plugged in until these are replaced. Not having the model number limits me to recommending these parts. If you ask for parts anywhere they will need your model number to get the correct parts for you, Thanks JT

  • Anonymous Jul 04, 2012

    The model number is 36358772890. Should the compressor be cool to the touch? I have been having this problem for about a month now. The frig has been on all this time. It keeps things cool just not cold. For example the milk is cool but it used to be cold.

  • John Tripp
    John Tripp Jul 04, 2012

    Compressors cycle many time every day and it is possible that the start relay is beginning to fail. What happens is the compressor may start and run for a while and then cycle off due to reaching the set limit of the thermostat. When it tries to restart it will cause the overload to click and this stops the compressor from starting in turn causing temperatures inside the fresh food section and freezer to rise. The compressor should be warm if running properly. If compressor then fails to start the compressor will become too hot to keep hand on top. If the compressor runs all the time and there is no frost build up and temperatures are high then you may have a problem with a Freon leak. So I need to know if the compressor runs all the time or is shutting down while fans continue to run and if overheating when it shuts down. In most cases this is fixable, JT

  • Anonymous Jul 04, 2012

    As far as I can tell the compressor is on all the time, I don't hear it cycling on and off. But there is a slight frost buildup on the panel. Like you mentioned it could be the start relay. Maybe I should replace it and the overload.

  • John Tripp
    John Tripp Jul 04, 2012

    You Model has a WR62X80 Run Capacitor shown on link belowhttp://www.repairclinic.com/PartDetail/R...
    WR7X253 Relay and Overload Kithttp://www.repairclinic.com/PartDetail/R...
    Below is a link to a user manual PDF for your model...JThttp://appliance911seabreeze.com/3635877...

  • John Tripp
    John Tripp Jul 04, 2012

    I would rather you insure the compressor is stopping while the fans continue to run. I hate for you to spend extra money until we are on the right trail here. Just make sure the compressor is continuing to run when the temperature begins to rise. If the fans continue to run but the compressor stops this points to a start component problem...JT

  • John Tripp
    John Tripp Jul 04, 2012

    When was the last time the refrigerator went into defrost? You said there is a slight layer of frost building up on the panel? Can you take some time and again remove that rear panel and describe to me what you see? JT

  • Anonymous Jul 05, 2012

    Thanks for the manual and the part #s. The last time it went into defrost was about 9 hours ago. I removed the panel and the ice buildup is the same as before covering the lower coils and surrounding plumbing. The compressor never shuts off during the cooling cycle. If I understand correctly the compressor should shut off when the temp set by the thermostat in refrigerator section is reached and should come back on when the temp rises above that temp. So the compressor should be cycling on/off several times during the cooling cycle or maybe it shuts down once and never comes back on thereby the ice develops on the coils. Does this make any sense. Thanks

  • John Tripp
    John Tripp Jul 05, 2012

    If the ice buildup is clear ice and it only takes up a few rows and the other rows that make up the rest of the evaporator have water moisture droplets on it your refrigerator is most likely suffering from a Freon leak. This will be why the compressor runs all the time. If this is what you see I believe it is time to shop for a new refrigerator. Please let me know if I am wrong, Thanks John Tripp

  • Anonymous Jul 05, 2012

    The ice buildup covers most of the lower half section of the evaporator coils, between the bottom heater the top heater. It is clear ice similar to the ice cubes. If a technician came out would he be able to detect a leak? You don't think changing the relay or overload would solve the problem?

  • John Tripp
    John Tripp Jul 05, 2012

    I am pretty sure if a Technician came out they would charge you about half the replacement cost of a new refrigerator just to tell you the same I have and I doubt that you would be lucky enough to find a Technician with enough patience to locate the leak. Most leaks happen in the freezer or the discharge side (condenser) Usually when it happens in the freezer the leak will pull in air and moisture into the sealed system really messing up pressures and the compressor oil. It is possible you have a slow leak somewhere and if you know someone that could add a couple ounces of Freon that would hold you out for a while and sometimes a good while. But to have a Technician come out, I just would not trust that route. I would look for a new refrigerator before being bound to them first. You are welcome to chose any way you feel is best to repair or replace I just would not have a technician come by and take what little money I had left to replace my refrigerator. No at this time I believe you have a leak and changing any parts will not help at this time. Thanks, John Tripp

  • Anonymous Jul 06, 2012

    Thanks for all your help.

  • John Tripp
    John Tripp Jul 06, 2012

    You are welcome, Sorry it took so long to see that you had clear or somewhat clear ice surrounding the evaporator tubing. Leaks do happen but defrost problems happen a thousand times more often. I guess I picked up on the part where you said (But there is a slight frost buildup on the panel.) There should be no frost buildup on the panel between defrost. Good Luck Barry, Thanks JT

  • Anonymous Mar 15, 2014

    ice melts

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John Tripp

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  • Kenmore Master 4,656 Answers
  • Posted on Jun 25, 2012
John Tripp
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Can you locate the model number of your Kenmore? The number should look like this 521.345678 and located around the inside of the fresh food section door.
ice buildup on evaporator coils - 6_25_2012_9_03_46_pm.jpg
It could be that the defrost heater came on the time you were watching bugt may have a bad connection or a defective defrost element. You need to test the heater for continuity to assure that the element is not broken. the defrost timer and defrost thermostat being new eliminates that as being the problem so I think your element or the connection is the most next likely cause, Let me know I don't mind helping, Thanks Sea Breeze

Defrost Heater Testing for Continuity

  • John Tripp
    John Tripp Jul 04, 2012

    If the refrigerator begins to warm after cooling normally and is not related to defrost I want you to pull the refrigerator away from wall and remove the lower cover that covers the compressor area. Then unplug and feel the top of the compressor. If the top of the compressor is too hot to keep your hand there then you most likely have a start component problem. Start relay, overload and start/run capacitor may need replacing. Let me know what you find, Thanks John Tripp

  • John Tripp
    John Tripp Jul 06, 2012

    You are welcome, Sorry it took so long to see that you had clear or somewhat clear ice surrounding the evaporator tubing. Leaks do happen but defrost problems happen a thousand times more often. I guess I picked up on the part where you said (But there is a slight frost buildup on the panel.) There should be no frost buildup on the panel between defrost. Good Luck Barry, Thanks JT

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Steve

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  • Kenmore Master 3,290 Answers
  • Posted on Jun 25, 2012
Steve
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The defrost cycle is in most fridges is controlled by two items working together. These are the defrost timer and the defrost terminator. The defrost timer switches power between the compressor and the defrost circuit. The defrost heater and compressor are never powered at the same time - it is a "one or the other but not both" arrangement. The defrost heater gets its power through the defrost terminator for up to about 20 minutes every 8 hours of so. More on this below. These times vary by manufacturer.
The defrost terminator is a simple, non-adjustable thermostat. Most have two wires and are physically clipped to the freezer coil. When the defrost terminator senses a cold temperature, it passes power from the timer to the defrost heater. It will continue to pass power to the heater until a predetermined temperature is reached (about 50 degrees F for many of these), then it shuts off. So, when the fridge is in normal cooling mode, the power is sent to the compressor by the timer. No power is on the defrost circuit. After 8 hours, the timer switches power to the defrost circuit. Since the freezer coil is cold, power is passed by the defrost terminator to the heater. The heater gets warm and melts the frost / ice on the coil. It will continue to heat the space until either: a) the timer runs out (about 20 minutes) or b) the defrost terminator senses the freezer coil temperature has reached 50 degrees F. At either of these points, the heater shuts off. The fridge compressor will not turn on again until the timer expires (about 20 minutes) AND the fresh food compartment thermostat has detected that the temperature has risen.

If the heater is shutting off after only 5 - 8 minutes (but compressor remains off if it was running just prior to the defrost cycle starting), it suggests to me that the defrost terminator is hanging in free air - rather than clipped against the freezer coil - or is defective and should be replaced. If the compressor turns on immediately after the defrost heater turned off (and the defrost heater was energized only for 5 - 8 minutes), I would suspect a defective defrost timer.

Under no condition should the timer be sending power to the defrost circuit for hours. Twenty to 30 minutes is all the time needed to melt frost / ice from such a small space. If the timer is passing power to the heater for this long, it is possible that you have mis-wired the switch (assuming you disconnected it for one reason or another), or it is has failed and needs to be replaced.

I hope this helps & good luck!

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5 Related Answers

douglas smith

  • 1462 Answers
  • Posted on Apr 08, 2007

SOURCE: Defrost problem diagnosis

you will need a multimeter. check continuity thro the heater and stats mounted on the evaporator

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Anonymous

  • 700 Answers
  • Posted on Dec 26, 2008

SOURCE: refrigerator/freezer not cooling evenly top to bottom

good then go ahead and ohm out the sensor and the relays to see if the resistance is close to the normat. 70 degrees is roughly 1000 ohms. relay you are lookling for continuity or open. then you can also ohm the fan motor too. let me know what you find;.that will determin whts bad and whats good

Anonymous

  • 6 Answers
  • Posted on Jul 23, 2009

SOURCE: kenmore fridge not get cold enough and coils icing again

check all heaters on frezer side and check coil under unit to make sure clean ajust timer at the top of icebox side behind plastic plate where light bulb is it shold be onthe right side top turn until unit turns off then turn one half this is the timer for defrosting cycle.

Anonymous

  • 308 Answers
  • Posted on Nov 16, 2009

SOURCE: bad defrost timer/ thermostat???

It definitely sounds like you have a bad defrost timer, that is the reason the coils are icing up on you. The next issue, which may or may not be related is the freezing of items in the refrigerator. Usually the cold air is transferred, through a vent with a damper, from the freezer and into the refrigerated section. The "thermostat" for this section is actually usually just a lever to adjust the position of the damper. That being said, usually when you have a problem such as you are having, it is either a stuck or broken damper (or damper component). Hope this helps

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Anonymous

  • 1430 Answers
  • Posted on Jun 03, 2010

SOURCE: Hello\r\nI am trying to troubleshoot my Kenmore Refrigerator

If the coils are not icing up you do not have a defrost problem. Check that the evaporator fan is operating. Thats the one near the coil. You will need to close the door switch to see if it comes on. If it is working next check that the damper is opening this alows cold air into the fresh food section. Without the full model # I am not sure if your defrost thermostat operates the fan. Check the wiring diagram to see if the t-stat feeds the fan. If it does and there is no power at the fan replace the t-stat.The problem is likely to be either the fan or damper motor. Try this link for more testing info
http://appliancehelponline.com/sxsevapfan.html
http://appliancehelponline.com/sxsdamper.html
http://appliancehelponline.com/sxsdefrosttstat.html

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Freezer at 34 and Fridge at 50. Frost build up on inside back panel of freezer

Your refrigerator's defrost system may be the cause of the frost buildup on the inside back panel and the higher temperatures in the refrigerator compartment.
To resolve the issue, you can take the following actions:
Check the thermostat for defrosting: Once the coils have reached a certain temperature, it is the job of the defrost thermostat to turn off the heater. It may not be turning off the heater, resulting in excessive frost buildup, if the thermostat is defective.
Using a multimeter, you can check the thermostat for continuity.
Check the heater that defrosts: During the defrost cycle, the defrost heater melts the accumulated frost on the coils. It's possible that the heater won't be able to melt the frost, resulting in its accumulation. Using a multimeter, you can check the heater for continuity.
Check the defrost control board and timer: The defrost cycle is started on a regular basis by the defrost timer or control board. It's possible that the defrost cycle is not being initiated, resulting in frost buildup, if the timer or control board is defective. Using a multimeter, you can check for continuity on the control board or timer.

And if the above is not helpful, do try the ones below;

Check the thermostat for defrosting: On the evaporator coils in the freezer compartment, you'll find the defrost thermostat. Once the coils have reached a certain temperature, it shuts off the defrost heater. Use a multimeter and disconnect the wires to test the thermostat at room temperature for continuity. The thermostat is faulty and must be replaced if there is no continuity , you can replace with https://amzn.to/3lvYEAy.
Check the heater that defrosts: In the freezer compartment, the defrost heater can be found on the evaporator coils. During the defrost cycle, it melts the accumulation of frost on the coils. Use a multimeter to verify continuity while disconnecting the heater's wires for testing. The heater is defective and needs to be replaced if there is no continuity with a new one that can be found on https://amzn.to/3lui4pr.
Check the defrost control board and timer: Behind the toe kick panel or inside the control panel at the top of the refrigerator is where you'll find the defrost timer or control board. It is in charge of periodically starting the defrost cycle. Using a multimeter at room temperature, check for continuity when testing the timer or control board. The timer or control board is broken and needs to be replaced with a new control board and timer via https://amzn.to/3I0j2Bn.
Examine the door seal: Warm air from the outside can enter the refrigerator and cause frost buildup on the coils if the door gasket is damaged or not sealing properly. Check the gasket for any signs of wear or damage, and if necessary, replace it.


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What is defrost overheat?

There is defrost heater which comes on in defrost cycle. defrost heater stays on certain time(lets say 15 min), but lets think it came on to defrost and melted all ice of the coils during 5 min, but we still have 10 more min design for heater to stay on. if heater will stay another 10 min it will warm up your stuff in the freezer, so everything will start to melt. to get around this, all freezers have limit thermostat(defrost thermostat), when that thermostat feels heat from heater, it will shut power off to the heater, so it still in defrost cycle, but heater will be off for another 10 min. When that thermostat get stuck in closed position(does not shut power to the heater when all ice melted out), you will have defrost overheat. so most likely that defrost thermostat needs to be replaced. here is the video how i replaced it on subzero pro series.
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Westinghouse RE391 has an ice buildup on the evaporator plate insede the fridge. What is causing this?

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The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad, it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass(disconnect the two wires plugged into it and twist them together) the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others. You can post your model number into one of several appliance parts sites on the internet and search for defrost components to find your parts.

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Freezer working, Refridgerator lost coldness. Found frost buildup in freezer, which is on top.

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The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.

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Interior frost buildup - about half way down from the top of the refrigerator 10 inces by 20 inches about a quarter inch deep

Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} DEFROST PROBLEM
The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.

0helpful
1answer

Refrigerator not cooling and freezer has ice buildup. Have replaced defrost assembly and still not cooling

The evaporator coil behind the cover on the back wall inside the freezer will ice up under normal conditions. Every 8 to 10 hours for around 20 minutes the defrost timer (or in most newer models the electronic adaptive defrost control) will turn the defrost heater on to melt the built up ice. There is a defrost thermostat which prevents the heater from overheating the freezer by breaking the heater circuit when the temp reaches close to 32 degrees F. The entire cooling system shuts off during the defrost cycle and starts back when the timer advances through the cycle.

If this ice is not melted it will continue to build up until the air can’t flow over the coil to circulate the cold air through the freezer and into the fridge. The temperature change in the fridge is usually noticed first followed by the freezer.

If the defrost thermostat is bad it can prevent the heater from coming on OR it won’t turn the heater off when it gets too warm. It is clamped to the evaporator coil at the top to sense the temp. If it appears to be misshapen it is bad.
With an ohm meter it should show continuity when cold and none when warm.
You can also bypass the thermostat to see if the heater comes on then. If it does then you know the thermostat is bad and needs replaced.

The defrost heater is located on the evaporator. It is in a tube which is at the bottom and can also go up the sides of the evaporator. On some types you can see a burnt spot if it’s bad. With an ohm meter it should show continuity from end to end when disconnected from the wiring in the freezer. You can also test the wiring for voltage when it’s in the defrost mode.

If you have a defrost timer you can test it. It can be located under the fridge behind the kick panel on the front. Some are in the fridge with the controls at the top. You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer because that means the timer is not running. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

If you have an adaptive defrost control instead of a timer, replace it if the heater and thermostat test good. It is located in the fridge with the controls in some models and on the back in others.
0helpful
1answer

Subzero 590: small upper fan inside the refrigerator not working

The fan circulates the cold air accross the evaporator to distribute the cold air around the fridge. It appears that your defrost system isn't working since you have ice buildup. You have a defrost heater and defrost thermostat and timer or motherboard which need to be checked to determine the problem. How to check everything http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.
1helpful
1answer

Defrost not working Getting ice buildup under cover and water under drawers in frigde department


If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.


This may be two problems. The water may be that Your drain tube is stopped up with ice at the upper end because it drains too slow because it's stopped up at the lower end in the evaporator pan under the unit at the floor. It can get dust and mold in it. Once you get the ice out at the top a little pressure with a turkey baster will usually clear it out. Flushing it out with hot water and clorox may help.
Make sure it drains quick enough to prevent refreezing. . The drain should be located below the evaporator coils on the lower back of the freezer.

1helpful
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Neither freezer or fridge sides are getting cold enough. There was ice buildup on the back of freezer where the air comes out, but I removed all this and 2 hours later, still not cooling. Fan is running,...

You have a defrost problem. Common problem on most frost free refrigerators because the ice buildup does not allow efficient heat transfer to evaporator coil. You will need to remove the cover in the back of the freezer compartment (you know , where you scraped of the ice).When you remove panel you will see a buildup of ice on your evaporator coil. This will have to be thawed out by hairdryer or some other means before you move onto next step.Next you will see a heater element (black thingy ) or glass tubes with internal elements .These are your defrost heaters. They can usaully be visually inspected but best to use an ohmeter to check continuity.If you have good heaters you will want to put frig into defrost by manually turning the defrost timer clockwise untill you hear frig cut off. (Look for timer inside right frig compartment next to thermostat.) power will now be diverted to heaters and will get hot for duration of defrost cycle. If defrost thermostat is bad this could be the case of problem( round looking disk thingy clamped to coil and wired before heater) You can check by bypassing the defrost therm directly to heater and see if heater works while in defrost cycle.You will want to replace it as this is the device that turns off the heater so as not to overheat and melt plastic in freezer.Just reinstall everthing and you should be good to go.
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