refrigerator side keeps freezing up.

Problems started about 2 months ago.I had a serviceman out who said the main computer board was shot but never called or came back.After some testing I decided that perhaps that was the problem and changed the board.I still had a problem and did a self diagnostic check which came back "refrigerator fan error".I changed thefan and three week s later it has froze up solid on the fridge side once again.I ran a test again and on led’s are lit up.I have had this panel apart about 5 times and have broken the styrofoam insulation in about 4 places.I have tried to superglue this back togetheras best as possible but it is not in very good shape.Could this be the problem? Thanks.

Here are your parts
http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=rs267lash

Here is a service manual which may help
http://www.servicematters.com/maytag_library/docs/SAM0074.pdf

it has froze up solid on the fridge side once again.
Not sure what your problem is.
Are the evaporator coils in the fresh rood section heavily iced up indicating a defrost problem?

I ran a test again and on led’s are lit up.
Also not sure what this means.

Unfortunately my puter will not let me open the service manual, something about a Japan1 font. So I will have to fix that before I can look at the manual.