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GE Side by Side Model TFX20JR  Rate Topic 
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 Posted: Sat Feb 24th, 2007 12:13 pm
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HJAC118
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We have GE side by side model TFX20JR that came with the house.   A month ago, we noticed the thaw out in our food.  The freezer did not feel cold as it used to be.  I removed the back panel....holy smokes!  It was completely frosted over/iced over.

I unplugged the fridge and manually defrosted it.  Once all the frost was gone, it started cooling up again.  All was good until yesterday! It happened again.

I went out and bought the defrost heater harness (it came with thermostat as well). My husband recplaced the heaters.  We replaced it around 7 30 p.m last night.  Now, it is 8 a.m., I checked the freezer and it looks like the coils are becoming frosted over.   Is it the defrost timer problem?  However, the top first coil where the thermostat is it is frost free.  Rest of the coils down are all frosted over (thick layer of frost).  Wonder if thermostat couldn't kick into defrost because it didnt detect the frost?  I dont know.

Any help or suggestions would be greatly appreciated!

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 Posted: Sat Feb 24th, 2007 01:30 pm
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nickfixit
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Its too soon to tell if you have another problem. Most refrigerators use a "cumulative compressor run time" defrost timer. In other words, the timer only runs when the compressor runs. If it's a 10 hour timer, it could be a week or more between defrost cycles.

If your refrigerator has a defrost timer, instead of a defrost control board, you can manually advance it into the defrost position. Once located, you can use a screwdriver to turn the center clockwise until you locate the defrost position. You can tell by the the fans/compressor shutting off, plus the defrost position has a different feel and sound. If you go past it, just keep turning until you hit it.

Once in defrost position, you can check to see if the elements heat up.

Nick



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 Posted: Sat Feb 24th, 2007 02:42 pm
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Poobah
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Alittle frost is normal as Nick said though with a (cumulative) timer it could take         a-w-h-i-l-e      for it to kick into defrost.  Yours being a TFX model should  have the mechanical timer (old style) in behind the plastic cover in the fridge. Go ahead and  manually initiate a defrost by doing as the above post says and this will get it back to square one.  If the heater comes on and stays for about 20-30 mins and then the ref. kicks back on you should be ok....good luck..

BTW...the heater you replaced should have been burnt( black) in the glass tube...correct?

Last edited on Sat Feb 24th, 2007 02:48 pm by Poobah



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 Posted: Sat Feb 24th, 2007 05:07 pm
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Scottthewolf

 

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It looks like this unit may still have one of those old rotary compressors that never got replaced under the rework.  If that's the case, the unit will continue running , but the cold control will never get satisfied to cycle the compressor off, thus you will get a strange frost pattern.



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 Posted: Sat Feb 24th, 2007 05:57 pm
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HJAC118
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Thanks everyone!

The defrost heater just kicked in and seemed to cycle perfectly.  Like some of you said, it was too soon to tell this morning.

The defrost heater tubes I replaced were burnt out black.

I am so stoked that I saved myself over 800 bucks for a new fridge.  50 bucks to fix the problem, woo hooo!

 

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 Posted: Sat Feb 24th, 2007 06:30 pm
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nickfixit
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It is sweet to save the cash, and it feels real good being self reliant.

Nice job!

Nick



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