have maytag refiregerator model MSD2641KEU SERIAL # 50095244JR BOUGHT IN 2007 never any problem this first time it has broken . PROBLEM I HAVE IS REFIRGERATOR has STOP BLOWING COLD NO COLD AIR COMES OUT I HAVE THE SIDE BY SIDE REFIGERATOR THE FREEZER WORKS FINE JUST REFIREGERATOR SIDE STOP WORKING I NEED TO KNOW WHAT PART TO REPLACE . i have replace so far this part adc the part in white box located circuit board proble still there. after i melt freezer side all is good until gets frozen than i have no air flow going to refrigerator side . below is the part i replaced 
thank you for the help
[LEFT][COLOR=#000000]Board, Adapt Defrost
Part Number: AP4078743
Made by Whirlpool
Read more: http://www.appliancepartspros.com/Appliance-Parts/whirlpool-board--adapt-defrost-item-number-ap4078743.aspx#ixzz1apDeVqvg
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