My GE Monogram dishwasher (model ZBD5700) seems to have a sporadic 'over fill' problem. During the rinse cycle, near the end of the run, water will sometimes run down the spillway into the small overflow tray, causing the float to rise and the pump to kick on. This is accompanied by the flashing 'Heated Dry' light. The only way to stop the pump (and the light) is to manually empty the overflow tray.
I've check the water level, and it was below the 'Max' line. Just to sure the water level wasn't the problem I reset the 'fill time' to the lowest setting - 75 seconds (factory setting is 80). The water level is at the 'Min' line now (or maybe a little below).
I've watched underneath while the dishwasher runs and it goes through some of the fill/drain cycles without any issue (not sure how many fill/drain cycles there are). Then, possibly in the final rinse (or near the end anyway) the water runs down the spillway. I don't understand why it's happening, and why it doesn't happen every time.
I don't see any food/debris anywhere, and there isn't excessive detergent being used (in fact it happens with no detergent at all).
Any advice would be greatly appreciated!