can anyone help please ive got a bauknecht model number wti910 washer dryer, its making a grating noise every now and again when it due to spin. and when it does spin it spins like mad vibrating alot any ideas as to what could be causing it please and secondly does anyone know were the filter is on them are they at the back? i dont know because weve not been in the house long and its a intergrated appliance, answers much appreciated thanks