Freezer door won't close tight - Jenn-Air JCD2389G Side by Side Refrigerator

Maybe a defrost component that has failed if doors are closing tightly and freezer compartment fan is running.

Make sure the doors are closed tight - freezer door may open a crack when frig side closes.

If door is tight, make sure the door gasket makes a tight seal. Often they need to be cleaned (409 is my favorite) or they get twisted. They also sometimes come away from the door in spots. Pay attention to the bottom seal which you usually don't notice in daily use.

Most of the time the problem is leaking air.
The warm outside air is leaking into the freezer.
This could be from a door that does not close tightly, a gasket that is bad, or perhaps someone is leaving the door open.
One way to check this is with a piece of paper.
The paper should be tight all the way around the door when the door is closed.
A loose paper will tell you where the air is leaking in.
God bless your efforts.

Hello, check the freezer sliding door rail. Removed everything in your freeze then gently slide out the freezer door. Check the bottom of the freezer for food items that may have dripped into the bottom of the freezer. Now, the check the roller rails along each side of the freezer there could have been widget that got smash by the roller on the freezer door, if you find this smashed widget--he not drunk--he is dead. Scrape the those roller rails and clean the and get all the globs,ice cream, widgets, pieces of other different types of freezer flub.
Next, set a level on the freezer door and see if the bubble is point forward, if not then screw up the front two leveler in the front of the freeze--one on each side in the front of the freezer/refrigerator. I hope this help you. GB...stewbsion

It does this because as you close the door, the air pressure goes to the freezer somehow, maybe through a venting that vents cold air from the freezer to the fridge. The resulting pressure in the fridge, goes to the freezer, and opens the door.

Sounds like the top hinge is loose. If the hinge has a cover, remove it then hold the door in the correct position and tighen the hinge screws.

Adjust the front legs of your refrigerator slightly to raise the refrigerator. and and store items on the freezer door shelves to add weight. This is a problem of pneumatics and a testament to how tight newer refrigerators are. When you close the large refrigerator door it compresses the air in the refrigerator compartment. Both compartments are connected by air passages and thus the pressure change is transferred to the freezer causing the freezer door to pop open.

Raising the front of the refrigerator a tiny bit will help both doors close from the 90 degree point, which is desirable. Adding weight to the shelf will just help the process.

An additional aid in self-closure will be to use vegetable oil on a paper towel to wipe down the hinge side face of both door seals. All these maneuvers should aid in causing the door to stay closed and re-close if it should open slightly. Good Luck

replace the seals and / or have the hinge adjusted

You can try replacing the seals and or adjusting the hinges.
That may work.

Be aware that if the unit is over 10 years old it is probably using twice as much power as a new one would and costing you an extra $75 to $100 annually to run over a new unit. Could be more than that if the door seals are not tight as well.

need to defost the whole freezer get the door to close correctly...