From the diagram that Al posted I would say the fan runs through that crappy defrost board that we all have been saying for years should not have been mounted inside the icebox. Change the adaptive defrost control or at least yank it out and clean the green corosion off the teminals with alcohol and reinstall it. It might start working.
May the hinges of our friendship
never grow rusty.
About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
I love fan letters! LOL