Signs
What you may observe
• Dishwasher stops mid-cycle and displays F9-E1 error code
• Water remains pooled at the bottom of the dishwasher tub
• Dishwasher door cannot be opened due to water pressure buildup
• Unusual sounds or humming from the drain pump area
• Cycle does not complete or advances very slowly
• Water backs up into the sink when dishwasher is running
• Wet dishes remaining inside after cycle ends