Dishwasher displays C9; unit may stop mid-cycle and beep, often related to rack or spray arm interference.

Safety first: Turn off power at the breaker if you need to access components under the unit. For rack adjustments only, you can use the control panel to pause.

• Check rack loading: Open the door and inspect how dishes are loaded. Ensure tall pans, trays, or utensils are not blocking the lower or middle spray arms.
• Spin spray arms: Manually rotate each spray arm. They should spin freely without hitting dishes or racks. Reposition items or adjust the upper rack height as needed.
• Inspect for debris: Remove the lower rack and filters. Check the sump for broken glass or hard objects that could jam the circulation pump.
• Test run: After clearing obstructions, run a short cycle and listen for normal spray sounds. If C9 returns and the pump is noisy or stops abruptly, the circulation pump may be failing and should be replaced.