Cold freezer warm fridge.

Question

hi , ive got an indesit fridge freezer model ban134nf and the freezer section seems to be working fine but the fridge is warm . i seem to remember when we brought it it seemed quite loud (a buzzing or motor running ?)but now when the fridge door is open the light comes on butits now silent and as luck would have it the one year warranty ran out 3weeks ago so any help woud be greatfully received