[redmanf1]

I have a Maytag refrigerator model MSD2756DEW and it is about 5 years old. It is not cooling very well on the frig side but cold on the freezer side. I looked and it is froze (ice) on the back wall. I looked for the screw to trip the defrost cycle but ended up turning the screw on the temp control assy. I tried to turn it back about where I thought it was. Is there a way to trip the defrost cycle?
Also if I check the defrost wire and it seems fine would a safe bet be the adaptive defrost part # 13?

Model MSD2756DEW

Thanks for any help
Nelson