While you wait for answers, we may have found some information which could help you.
Click here for Dishwasher Lights SoundFisher and paykel DW820 beeps after rinse cycle?
How to fix a Fisher and Paykel DW60CSW1 Dishwasher?
Fisher & Paykel Single Drawer Dishwasher Won't Drain?
re Fisher and Paykel Dishwasher Model DW820?
How to get the rest of the rotor assembly out its broken from the shaft ?
My fisher and Paykel dishwasher DW820 is not fully drained ?