Dishwasher displays E12 and may stop with water remaining in the tub; sometimes accompanied by unusual pump behavior.

Safety first: Unplug the dishwasher. Be prepared for water when tilting the appliance.

• Check for leaks: Pull the dishwasher out and inspect the base tray through the bottom or side panels. If water is present, the anti-flood float may be activated.
• Drain base tray: Carefully tilt the dishwasher backward to allow water to drain from the base. Use towels to absorb any spillage.
• Inspect float switch: Locate the float and microswitch in the base. Ensure the float moves freely and is not stuck by grease or debris. Clean as needed.
• Find and fix leak source: Examine hoses, clamps, the sump seal, and the circulation pump for signs of leakage. Tighten clamps or replace damaged components.
• Reset and test: Once the base is dry and leaks are addressed, restore power and run a short cycle to confirm that E12 does not reoccur.