Kitchenaid Fridge

Center divider strip between doors is extremely hot. Unit cooling fine on both sides but runs almost continually. Cleaned coils per directions in manual best I could, no help.

Did you check that the condenser/compressor fan was running.
And that it is blowing correctly.
I would also check the fan blades as dirty blades can drastically reduce air flow.

Also check that the rear cover vents and the kick plate vents are clean.

read this: http://www.stevejenkins.com/blog/2014/03/how-to-fix-a-whirlpool-kitchenaid-w10219463-2307028-control-board-for-6/

If you’re handy with a screwdriver & soldering iron, you can fix it yourself – I did.