Dishwasher interior overflows with suds, sometimes leaking foam from the door.

Safety first: Turn off the dishwasher immediately to prevent leaks and slipping hazards.

Step-by-step checks:

• Stop cycle: Cancel the cycle and open the door carefully to assess suds level.
• Remove suds: Scoop out excess foam and water with a container or towels.
• Rinse cycle: Run a short rinse-only cycle with no detergent to flush remaining suds. You can add a small amount of cooking oil or vinegar to help break down foam.
• Detergent correction: Use only dishwasher-specific detergent and ensure rinse aid is not overfilled or leaking.

Warning: Do not add salt, baking soda, or other random substances in large quantities; they can damage components.