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Problem auto defrost refrigerator

Freezer not automatically defrosting.Very few parts,heater element,timer,
sensor and defrost control.Which part would likely be defective?General Electric top freezer Model tbx18jathrwh.
Thank You

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Loaded question any COULD be bad a volt ohm meter will tell you whitch one is bad

if this is a ge sxs i would check the defrost heater first

Posted on Jun 24, 2008

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I have a refr. G.e TFG27PF Profile and have some bad smell like a wire short. i looke all ever and it looks ok and the refri. is working ok. today sudenlly the DF light started to blink what is the problem/ thank you for a fast answer.

Posted on Sep 04, 2009

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Posted on Jan 02, 2017

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1 Answer

Freezer working fine but refrigerator not cooling


If your refrigerator freezer compartment is cold, but the refrigerator compartment is warm--It could be a defrost problem. When a defrost problem occurs, it is usually the fault of one or more of three basic parts: defrost timer/adaptive defrost control, freezer thermostat or the defrost heater element. See in detail how to dx and fix: Refrigerator Defrost Parts .

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Freezer works but not blowing cold air in the fridge


If your refrigerator freezer compartment is cold, but the refrigerator compartment is warm--It could be a defrost problem. When a defrost problem occurs, it is usually the fault of one or more of three basic parts: defrost timer/adaptive defrost control, freezer thermostat or the defrost heater element. See in detail how to dx and fix: Refrigerator Defrost Parts .

Aug 03, 2014 | Refrigerators

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Coil in freezer icing up and auto defrost not working.the heat strip at bottom of coil is not going on and ice build up on coil cuts cold air supply to refigerated side of refrigerator.is there a sensor...


Your fridge is probably suffering from a defrost circuit failure. One (or possibly more) of the following components has failed: 1) the defrost terminator or sensor, 2) the defrost heating element or 3) the defrost controller / timer. Items 1 & 2 should be found in the freezer compartment - behind the back wall. The 3rd item can often be found in the toe space at the bottom of the fridge - behind a kick plate or some other relatively accessible location.

The operation is as follows: The defrost timer runs constantly and about every 8 hours or so, it switches the power from the compressor and its associated controls (fresh food compartment t-stat, etc.) to the defrost circuit that consists of a heating element and a device called a defrost terminator. Power is applied for about 15 to 20 minutes during which time the defrost heater is energized IF the defrost terminator detects the evaporator coil compartment temperature is cold. When the defrost terminator detects that the heater has warmed the evaporator coil compartment to a temperature of about 50 degrees OR the timer has powered the defrost circuit for 15 to 20 minutes, the defrost circuit / heater de-enrgizes. Even if the heater is hasn't reached 50 degrees in the 15 -20 minutes, the timer switches from the defrost circuit back to the compressor through its controls once again. You'll need to determine if 1) the timer is timing, 2) the timer switch can actually send power to the defrost circuit, 3) the defrost terminator can close when cold - or if it is stuck open, or 4) the heater works.

If you don't know how to work with electrical meters and tools or are not comfortable working in tight spaces (back wall of the freezer) with live electric parts, you should call a repair person. Also, refrigerants are very dangerous. If allowed to escape from the tubing, coils, etc. there is a very real danger of instant frostbite if it comes in contact with your skin. You can be blinded if it contacts your eyes. These above reasons make me believe that this is a pretty complicated DIY type job and really isn't a good one for a beginner to attempt. On the plus side, parts are relatively inexpensive, and a qualified person should be able to quickly diagnose the problem. Labor rates and standard parts markup can bring this repair up into $200 and up range, however.

If / when you do call for service, having the freezer emptied & defrosted already - will save the cost of defrosting time by the repair person.

I hope this was helpful and good luck. Please rate my reply. Thank you.

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1 Answer

The refrigerator part stop getting cold, but freezer part is still working, what do i need to do


The fridge gets its cold air from the freezer through a vent(damper) between the freezer and fridge.The fan in the freezer blows air through it. There is a flap you adjust with the fridge temp. control. Make sure it's opening and closing when you adjust the fridge temp ..
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.

How to check everything
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php

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2 Answers

Freezer side stops defrosting.


has the defrost timer been replaced? if not, that'd be the next step. there are only a few parts in that line: the power, the sensor, the timer, and the heating element. also, if the condesate drain is plugged, water stays pooled under the coils and freezes again.

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1 Answer

Freezer and refrigerator top part does not cool, only bottom.


you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model

Aug 22, 2009 | Jenn-Air JCD2290HES Side by Side...

2 Answers

Freezer frosts up and food gets soft


Repair the defrost system, defrost timer,defrost thermostat and defrost heater.

Aug 18, 2009 | Refrigerators

2 Answers

Problem with the unit not defrosting. How do I know which part is the problem? Thermostat, heater and Bracket assembly or mother board. Is there something else I should be looking at? Thanks Dan


you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model

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1 Answer

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I you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model

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2 Answers

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Hi,
There are a few reasons why the refrigerator part will not cool...here are a couple of tips that will help you to figure out why the refrigerantor is not cooling...

Refrigerator2_bing.gif not Cooling or Fridge not Cooling
http://www.fixya.com/support/r3662945-refrigerator_not_cooling_or_fridge_not

How to Defrost Refrigerator Defrost Timer Problem
http://www.fixya.com/support/r3771673-defrost_refrigerator_defrost_timer

heatman101

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