first of all, I see overlapping and intersecting faces in your model, that could cause some problems. Second of all, you might have some messy surface normals that could also be causing problems and third of all(last but not least) your UVs are all mapped to 0 and 1 along the respective UV axis. Which is something you might want for some of the faces but certainly not for the faces of elements such as the...what to call it in english...knobs? On the drawers for an example.
