Jeff we have a KA side by side that had the same problem.
I had to research the fix and tell KA repair what to fix.
It has worked perfectly ever since.

Here is what the issue was............. warm on the refridge side .. real
cold on thee freezer.
The cold all comes from the freezer side so if the freezer is ok then the
problem is the
cold air does not make it to the fridge side.

Near the upper left side rear corner of the fridge .. top shelf area is a
vent box.
You should feel real cold air coming out of this vent when trying to cool
down.
Inside this vent box is a not repairable part called the AIR BAFFLE .
Mine was froze closed and did not open and close like it should after
thawing it with a hair dryer.
So after the hair dryer thaw I stuck a chop stick in the baffle which held
the thing open
and it cooled great till the service guy replaces the AIR BAFFLE electric
vent thing.

They had to order the part from KA and it requires removing the ice maker in
the freezer
to remove and replace the dang thing.
After that was done ( repair guy never did one before ) the thing has ran
perfectly and I am careful
not to set the temp lower then recommended in the book and not block the
vent ..
Both things that I did which caused the freeze up and jam of the AIR BAFFLE.

Refer them or KA customer service to KA JOB AID Part No 4321863 which is the
tech reference guide for the service guy that explains how to replace the
AIR BAFFLE.

I have the guide in a PDF file if you need it.........
will be gone till Monday for TNX Giving but can send same if you want
email here is

Good luck .......Jim
>
> Any help or advice would be greatly appreciated.