My electric fan makes a bad noise like the bearings are bad. I was going to order a new one, but they need to know if it has an oval or round plug. I tried to follow the wires to the plug from the top, but can't see it or reach it. Is the plug accessible from the bottom? The fan itself came out pretty easily from the top by taking out one screw and rotating the bracket.

Does anyone know where the plug is? Thanks