Samsung RM255LASH Not Cooling

Hi all!

I am looking to repair my Samsung RM255LASH and I am not exactly sure which part I should test\replace. When I run the self diagnostics I get a flashing 98 88 on the freezer side and a solid 88 on the fridge side. Any thoughts?

Replaced the main board and now the temp on the display registers correctly. Shows room temp 77 for Fridge and Freezer. Compressor (warm to touch) and fans are all running. Still not cooling in any compartments. :confused: