Portable Whirlpool Dishwasher Repair

Model Number: DP840DWGX1
Brand: Whirlpool
Age: 6-10 years

Portable floor Model. Connects to sink faucet. The wash cycle starts correctly, it fills, then when it begins washing, it is both washing (the washing arms spin and spray), and it also drains the water out until it is empty. The washer arms continues to spin . Is there a part I can replace this from happening? Thanks for any and all help!!

I have never worked on one of these but the following may be useful to you.

Could be a problem with the drain valve.

https://drive.google.com/drive/folde...1ZxdzBFRkNmUEE