Kenmore Model 20882990 - The washing machine fill up and drains but won't agitate nor spin. It has a continuous whirring sound which to me sounds like the motor is working, although I could be wrong. There are no visible belts that I can see. What do you figure is wrong and can you please help me. Is there a site I can refer to or a video that will provide step by step instructions for me to get it working?