My B & D Bread maker, model B2300 - the kneeding paddles stopped moving while in use. I can hear the motor working and the timer works but the machine has stopped kneeding ! If I do not find an authorised service agent (in southern India), I may have to tackle this problem myself ! Can any knowledgible person suggest what could have gone wrong, what part may need replacing and how do I get access to this part of the machine.