The frige and freezer seem to be heating up at varies time, with out the doors being open and closed it will cool back down after a bit. It seem like heat is getting fed into the freezer and frige because the ice is melting way to fast with out the doors being openned. We had the frige on top of carpet moved it onto tile, still keeps warming up, thought it was the outlet it was pugged into, so we changed outlets, still having the problem. We were told it was the main board in the frige. Is this really the problem of could it be something else. Thank you Brandy