The bottom of the dishwasher was full of water leaking from the Heater Assembly. This caused the float to activate the Drain Pump that ran all night and would continue to run even though a CL was showing in the LED that the machine was done with its cycles. The Heater Assembly had a hole burned through the side by the heater element after 15 years of use. Had to disassemble the whole dishwasher to replace the part. Not an easy job but cost 1/4 the price of a new dishwasher and works like new again.