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good evening.If this is not going into defrost at all your ADB (adaptive defrost board) has failed. This is a common problem with these refrigerators, ever since they've gone electronic they have had problems. you need to order and replace it. its not cheap however, $225.95. but if this isn't going into defrost thats the issue. heres a link to order it. http://www.repairclinic.com/PartDetail/Defrost-Control-Board/2304093/1174815?modelNumber=GR9FHTXTB00?RCAID=1000065 the part number is(NNN) NNN-NNNN its located in the control panel inside the refrigerator section. (where you turn the dials to set the temp. take the screws out holding the control to the ceiling and drop it down , you will see it. it just plugs in. thanks and best wishes, Bryan
Thanks I just wanted confirmation that it was not the thermostat or element.
Bought a new board and that did not fix tehe problem.
Okay thats not good, Tell me when you had to defrost this with a hair dryer were all the coils frosted ? not just some ?
The ones around the edges, along the bottom, but not the top.
Also, the day the part arrived. it began defrosting and defrosted for a few days the went back to frosting up.