I am having the same problem with my Maytag MSD2356AE not defrosting properly just like Kwun (August 2005). Where can I find the defrost control board to repair or replace?

Tom, March 2007

I have a Maytag Model MZD2766GEQ side by side door. I hope your model is similar. The DCB is located on the top right side of the water filter. Remove the plastic upper console housing by pulling forward from the back 2-notches on both sides. Remove two phillips screws in the middle of the upper console and th console drops down. You'll find the DCB on the inside right corner. Remove the 2-1/4" head screws to detached it from the console. Unplug and replace it. You got your fridge working again.

http://www.applianceblog.com/archives/2005/07/defrost_control_1.html

http://applianceguru.com/forum1/119.html

Thank Jake from Appliance blog etc.

Medi G. Scarborough ON., March 2007