The water keep filling the dishwasher while it was in use. Due to overfilling water started to come outside the dishwasher and made a big mess in kitchen and basement. I had to turn off the water supply valve under the sink. Now regardless the dishwasher in on or off water would start filling the dishwasher if I turn the water supply valve on.
Please help, thanks.
Here are your parts
Parts for Whirlpool KUDI01ILWH2 Dishwasher - AppliancePartsPros.com
Odds are that you need a new fill valve (item 7 in the Fill And Overfill Parts section).
The overfill switch should kill power to the valve when it overfills so odds are that the valve is stuck open.
You can confirm this by checking the voltage across the valve. If it is zero or a low voltage 20 volts or so and water flows then the valve is bad.
Thank you for your suggestion. I will try this over the weekend and let you know the progress.
Obaid