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Ge refrigerator top freezer is frosting over

Model # gth18ecc2rbb - ice build up in freezer then the refrigerator will not cool down. this is a frost free refrigerator - why is it frosting over. Have to defrost every week

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  • GE Master
  • 4,656 Answers

Refrigerators that self defrost have three main components that cause defrost to take place. On your model GTH18ECC2RBB there is a WR55X10397 Defrost Control Board
ge refrigerator top freezer is frosting over - e09a6ac4-8e1a-421f-a2da-14ff1c386c84.jpg

This part is most likely the problem and is found inside the fresh food compartment and inside the control panel. The location is 257 in this photo HERE Sometimes the defrost control board will show burn marks but not always. The other two parts that may be defective are the WR51X10038 Defrost Heater
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The WR51X10038 Defrost Heater is location 618 in photo HERE
and the=> WR50X10071 Dge refrigerator top freezer is frosting over - ba9f87d6-60d9-4ee7-b168-2123fa15d7a2.jpgimages/ba9f87d6-60d9-4ee7-b168-2123fa15d7a2.jpg" alt="ba9f87d6-60d9-4ee7-b168-2123fa15d7a2.jpg" class="h_mi" />
The defrost thermostat is location 630 in photo HERE a tutorial of how to test the defrost heater and defrost thermostat can be found on the parts pages listed above. I will try to put the defrost heater test below. I think the defrost control board is most likely the problem here so look it over first. Manually defrost the evaporator with a hair drier so you can remove the defrost heater and test for continuity. I am here should you have questions Thanks Sea Breeze

Posted on Apr 03, 2013

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6 Suggested Answers

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6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

  • 159 Answers

SOURCE: ice build up in back section of a Whirlpool no frost top freezer refrigerator 66"hx30"wx27"d

your sure the defrost cycle works? sounds to me its not. you need to remove the freezer back and check the defrost components. or put it in the defrost cycle and see if it is working. to get that much frost as you describe the dor would have to be left open. also check all door seals. let me know what you find and we can go from there

Posted on Aug 10, 2007

eagle338

eagle338

  • 4889 Answers

SOURCE: freezer no frost

This is probably due to the failure of defrost timer or the heating coil..Try this
1)The defrost timer is sometimes found behind the front grill of the refrigerator. It may also be found behind a cover plate inside the refrigerator or freezer, in the temperature control console, or behind the refrigerator near the compressor.

The timer is usually held in place with one or more screws. Remove the screws and gently pull the timer out far enough to disconnect the wiring connector.

Locate the timer switch and turn it clockwise until you hear it click. One click and the refrigerator shuts off = defrost mode, second click the compressor and fans come back on = run/cooling mode.
2)If this doesnt work then Test the heating element for continuity using a multimeter. Set the multimeter to the ohms setting X1. Place a probe on each terminal. The multimeter should display a reading somewhere between zero and infinity. Because of the number of different elements we cannot tell what your reading should be, but we can be certain of what it shouldn't be. If the reading is zero or infinity the heating element is definitely bad and should be replaced. Proper power ( careful!! ) to the heating element ( 110-120 volts AC ) and the defrost heater does not come on = bad defrost heater.

Posted on Oct 15, 2007

mikedurland

Mike Durland

  • 481 Answers

SOURCE: Viking freezer frost build-up

Sounds like a defrost problem. Check to see if there is any frost buildup in the back wall of the freezer. If so, it is not defrosting as it should.

  • possible causes:
  1. bad defrost timer/control board
  2. bad defrost heater (in freezer)
  3. bad thermo switch in freezer
If you don’t know what these are then unplug the machine and let the ice melt in the freezer overnight with the door open. Then try it the next day, if is cooling fine then you need to have a service person replace one of the above items.
  • if you already checked this and think it is a different problem then let me know, i will help you figure it out. 
Mike  

Posted on Jul 21, 2008

Lakelive

  • 2 Answers

SOURCE: Defrost problem on a LG Bottom Freezer Refrigerator

I had the same trouble. I found out if you have the digital display of temperature type of refrigerator adjust the freezer temperature to +5 degrees. The defrost systems uses a circuit board type. Not sure how it works. I took the back panel of and looked at the board. Did not see any manual defrost methods. I had to remove all the contents of the freezer and manually defrost. have not a problem since.

Posted on Nov 24, 2008

Anonymous

  • 15 Answers

SOURCE: Frost gathering in freezer, icemaker dispenser freezes over

well check to see if door seal is split if it is get new one!! need to see photo of the frozon over dispenser- found before that when ice not bein used alot the odd time you will have to take out the ice in the bucket crack it up and put back in try this???

Posted on Feb 03, 2009

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Hotpoint Future fridge freezer - freezer working well but top of the back of the fridge has a large build up of ice ??? And doesn't appear to be keeping the food cold enough


here are lots of things that can cause cooling problems. One of the most common causes of poor cooling in a frost free refrigerator is a defrost system failure. In such a case one or the other compartment may appear to be keeping proper temperature but that too may change in a short period of time. The fridge compartment's temperature rise is usually (but not always) the first to be noticed. Frost" and "Ice"
There is a difference between "frost" (a white, snow-like substance) and "ice" (usually clear and solid). When referring to what is seen during an inspection, please keep this distinction in mind as the possible causes for each are often very different. The Defrost System
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