[Rob Mildenhall]

Hello,
My dishwasher just melted 4 plastic lids on the bottom rack before the dishwasher ever started. After 10 minutes, just a smelly mess. There is an 'accu-temp' button on the panel that I assume preheats the water prior to the washing cycle beginning. I turned accu-temp off, and heated dry off, and the washer cleaned the dishes, but left them wet. Im fearful of using accu-temp again without monitoring. Does this sound like an issue that can be narrowed down to a couple possible causes, or maybe a most likely cause?

Thanks in advance.
Rob Mildenhall