The "High Water Level" in the machine can be triggered not only by the Styrofoam operated switch in the safety tray under the machine's tub, but also by the Overfill Pressure Switch pictured here
My previous post describes the erratic behavior this switch can cause. It seemed almost at random, the "High Water Level" condition would occur in whatever cycle I used.
It is easily located at the end of a small rubber hose visible when the kick panel and service covers are removed. Look just above where the electrical power terminal block is. The switch is held in place by the clip protruding from the top (as shown in the picture above). The sides of the clip need to be pressed towards the center to release the switch. I simply rotated the switch until the clip was turned to the longer side of the rectangular hole it clips in to. It then just fell out.
This pressure switch triggers the drain pump when too much water enters
the machine, but it can malfunction and will keep the drain pump
running "forever" until you turn off the breaker. Unfortunately, until
the problem is rectified, the dishwasher "remembers" what it was doing
when you disconnected the power and when you re apply power, the drain
pump will again start draining your already empty dishwasher.
I pulled the connectors attached to the spade terminals on the switch back a bit and then forward as far as they would go ensuring all the wires had continuity from the terminal to the opposite end of the wire it was attached to. When I re applied the power, the empty dry dishwasher attempted to start up where it left off in the cycle it was on, but the "High Water Level" conditioned cleared. Pressing and holding the single button opposite the light left on canceled the cycle and the machine went into standby as it should.
I hope this helps someone else. Until I "Googled" the part number printed on the switch, I didn't know what triggered the "overfill" or "High Water Level" condition.
Part number on the part was 8058475. I also found out the small hose attached is part number 8058500. The small hose is not as readily available as the pressure switch, so extra care should be used when handling it.