Dishwasher wont start

My brother gave me this machine. It worked before I moved it to my house. I connected all wires and plumbing correctly. The start switch continues to flash green but wont start the cycle. I open the door, it flashes, i close the door, same thing. I have cancelled many times. nothing. Please help!:mad:

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Replacement parts for WHIRLPOOL KUDP02CRBS2 UNDERCOUNTER DISHWASHER | AppliancePartsPros.com

Here is the tech sheet for this unit, see the attachment.

Could be the door switch is not closing for some reason.
Perhaps the thermal fuse is blown (Item 6 in Section 2)
Might even be that the start switch is shorted.