samsung srs2028cvw

Hi,
Can anyone give me a hand, this is the twin cool version about 8yrs old,
probs started with the water dispenser bottle freezing (i just ignored this problem)
Bigger issues have now arisen

The freezer stopped freezing, fridge seemed ok.
checked out many pages and have done checks on the 3 plugs in both fridge and freezer

Fan on freezer deff broken, sensor on yellow wires is white
top plug fuse ok
middle plug only 200 ohms (blue plug 1250 ohms)
bottom plug 9k ohms (but temp not correct)

on fridge
top plug ok
middle plug 490 ohms (blue plug no reading)
bottom plug 9k ohms (but temp not correct)

anyone know what parts i need plus cost will order

Thanks