[danbrown]

The problem started about two weeks ago when the freezer temp rose and everything melted/defrosted. Since then I've monitored it and both the frig and freezer warm up (way to much) and then cool down sporadically. This morning everything was cold and now this afternoon everything has warmed up again. The doors are closed and sealed securely.
I have noticed that the temp control LED lights are not always lit.

[PS Staff - Sheila]

This sound like a problem with the mother board that is located at the back of the fridge.

The mother board controls the operation of the refrigerator.

Here is a link to your fridge model pts25lbmarbb.