Does anyone idea what part I might need to repair my dishwasher? The lights directly above the buttons labeled “HEAVY”, “NORMAL”, and “CANCEL” have been blinking and the dishwasher is not working. 
After having the power off for an hour the lights stopped blinking but the “HEAVY” light came on solid. After getting the light to go out by pressing some buttons, we started up a load of dishes, but soon after, the machine stopped. Now the “HEAVY” light is blinking.
Thanks,
Tom
Here are your parts
Replacement parts for WHIRLPOOL KUDI01ILBL5 UNDERCOUNTER DISHWASHER | AppliancePartsPros.com
See the attachment for the tech sheet.
Sounds like a shorted key or a control board problem.
Unplug/ remove power from the unit.
Unplug the control panel from the control board and check the key outputs with a meter (see the tech sheet).
If it checks out OK replace the control board as it is giving a false error.
Note: This is not 100% but your odds are better at getting the correct part.
You could try he following but I doubt it will do anything as it fixes open keys not shorted keys.
Connector Cleaning / Checking
Unplug the unit
Open it up
Remove the ribbon cable from the keypad to the control board at the control board.
Clean the edge connector.
If it is the type where there is not a connector just the insulation is removed, it can be cleaned with a pencil eraser. Do not use an ink eraser as it is too abrasive.
Check the tracks in the ribbon cable for hairline cracks. A magnifying glass helps here.
Would not hurt to clean the connector on the board. Use electronics contact cleaner or isopropyl alcohol and a tooth brush. Be gentle and do not reconnect till all the solvent evaporates.
Reconnect everything and give it a try.
KUDI01.pdf (1.0 MB)