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I would actually suspect the outlet first.
Try the washer on another outlet and watch the unit. If it blows the circuit breaker, then you have a short that manifests itself late in the cycle. I haven't seen that before.
That's good information.
So, you're problem is likely the pump motor. A water inlet valve let's the water in. The pump doesn't come on until just before the rinse to remove the soapy water. You have a short and/or bad pump that is pulling too much voltage causing a breaker to fliip.
I should have asked for a model number. Please send me a model number and I'll get you more info on how to do the repair.
This site will help you thru a do it yourself repair -
This site has the specific parts you need -
Let me know if you have any other questions and/or please accept the answer.