Read the probable cause for the situation, figuring an evaporator fan was the issue and ordered the grommets.
Removed the freezer drawer to access the fan and evaporator coil area.
Removed the panel along the back wall and noticed ice build up in corner of coil and encroached into the fan blades. Defrosted the the coils with a hair drier and removed ice, checked the evaporator heater resistance. All ok. reassembled. Didn’t need the parts after all.