I have an old Estate Washer, that has run wonderfully for years. As of late, when it gets to the rinse cycle draining portion on the timer, the machine lets out a loud buzzing noise and does not drain. The timer, however, continues on until the end. I've replaced the timer, thinking that might be the problem, but it did not resolve the issue. What else could it be? I can't afford a new washer, and I can't keep buying parts that don't solve the problem. Any one have any ideas. I appreciate any and all help. Thanks