The problem you are having is you have a direct short to ground in your system somewhere. You will have to track it down, and correct the problem, or you will only keep blowing thermal fuses and breakers.
As this is blowing the breaker it should be an obvious short. I would look inside the control panel first. Considering that you do not have to push the start button this is where I would start looking. Then check the timer.
In order to eliminate the possibilities you can disconnect the harnesses, and then try plugging the unit in. If it trips the breaker the problem is not in that wiring harness.
When you locate the problem but do not know how to fix it you can just post here and I can help you repair the problem.
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