washing machine not draining properly

My machine runs through all cycles except the final drain, then shuts off. When I turn the dial back it drains. There is also a strange odor at about that time.

Can you explain the smell?
Is it like a burning electrical odor?
Does the smell originate from the control panel area or from the bottom of the machine?
A few possibilities:

  1. Timer

  2. Wiring short from timer to drain pump

  3. Drain pump

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