Here is a link to your
fridge model JSD2388AEW.
The auto damper control may be faulty.
Here is the auto damper control.
To remove this and test do the following.
Unplug the fridge.
Remove any items on the top shelf.
Set the fresh food control to the coldest position.
Remove the light shield cover by pulling down on the back corners of the cover and sliding the cover forward.
Remove the fascia/radiant shield mounting screws. Remove the control housing mounting screw at the back,bottom center of the control housing. Slide the control housing to the right. lower the control housing.
Disconnect the temperature control housing electric quick disconnect.
Remove the temperature control housing from the refrigerator and place it on a flat work surface.
Remove the auto damper control rod retainer, control rod and the side control gear from the auto damper control.
Turn the control over.
Remove the two auto damper mounting screws, then remove the auto damper from the control housing.
Mark the auto damper rod approximately 1/4" away from the housing.
Uncoil the auto damper capillary tube approximately for inches.
Submerge the capillary into a glass of ice (no water).Watch for the door to move to the closed position.
Remove from the ice and warm the capillary tube with your hand. Watch the door for the opposite reaction.
If there is no movement replace the control.