Maytag Plus side by side refrigerator stops cooling. I unplugged it for 24 hours. When I plugg it back in, it works fine for about 2-3 months. Then it stops again and works fine after being unplugged for 24 hours. Why does it keep doing this and how can I fix it?

Take food out of the freezer, take out the racks, take off the back panel on the bottom/back ( probably 4-6 screws).. You will see a fan. If that fan has ice around it, then take it all off, chip it, hair dryer, what ever you want. Unplugging it for 24 hours is not enough for all of the ice to melt so it is probably taking a couple months to build back up. Generally this happens in a high humidity time of the year. It will probably happen again, do not freet. Just clean it again. I know one customer that had it happen two years in a row and that was about four years ago. He has had the unit (Maytag Plus side by side refrigerator) about 10 years and is just fine with it. Little inconvience, but sometimes that is the breaks in life. Good luck....