Maytag Bottom Freezer Ice Build Up

Your maytag fridge has an automatic defrost system that melts the ice from the freezer coils.
Maytag bottom freezer ice build up. Humid room air causes moisture to build especially when the doors are frequently opened. Fitzpatrick my whirlpool bottom freezer french door fridge starting to build up ice on the evaporator coils after 11 months of buying the fridge. Get all items out at one time keep food organized and close the door as soon as possible. How to fix an iced freezer bottom.
Clear the drain tube to fix this problem. I ve read about the freezer to fridge vents being possibly blocked by ice build up food debris etc causing air restrictions which may be causing fridge section to be warm. Defy c315 freezer cold but fridge section warm. In an upright freezer with automatic defrost a defrost drain tube clogged with ice or gunk can cause water to puddle at the bottom of the freezer where it forms a sheet of ice.
I have a maytag french door refrigerator with a bottom freezer and about 6 months ago it started building up ice on the floor of the freezer and leaking onto the floor. As the ice melts it drips to the bottom of the freezer exits through a drain and collects in a drain. Ice build up on lower back and bottom of freezer. I can t however locate these vents i keep reading about.
Maytag side by side ref freezer with ice dispenser which is not hooked up to water but dispenses ice that i put in it. Every six to eight hours the defrost timer in your freezer turns on to melt any frost or ice buildup on the cooling coils behind the freezer wall. To avoid excess moisture buildup minimize door openings. A drain hole.
An improper seal of the gaskets on the refrigerator or freezer doors could also cause humidity to form. The drip pan underneath is always empty so i suspect that the drain is clogged. The repairman said that it s the control board that needs replacing because the fridge was not defrosting every 8 hours or so like it s supposed to.