LG dishwasher

My dishwasher starts to wash and then stops and comes up with an LE error message. I have checked all the wiring and impeller and recently purchased part number 4681ea2002h from you. After installing new part the dishwasher still comes up with the error message before getting to the rinse cycle and the water does not drain. Any ideas on what to try next?

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http://www.youtube.com/watch?v=XCtHvQ-GEdE
This video should help you figure it out