How do you find fault codes for dishwasher

Hello. Could anyone please tell me which buttons to push to get the fault codes on my dishwasher so I can find out what is wrong with it?
Thanks in advance!
Lisa

See the attachment for the tech sheet

Thank-you sooo much for your help!! One concern though-the model number on the top of the spec sheet you sent is W10590887D, and my dishwasher is WDF310PAAB1. Are they exactly the same? Or just the buttons you push to find the codes?

Thanks again!!
Lisa

The tech sheet is what comes up from Whirlpool.

The W10590887D is the part/literature number for the tech sheet.

Thanks soooo much! You are AWESOME!! Have a great day!