Bosch Dishwasher F2 Error Code: Causes and Fixes

Editorially reviewedUpdated 2026-02-20 · Model family: Series 300

Quick answer: Overflow state detected

What you’ll notice

Dishwasher stops cycle and shows F2.

Bosch Dishwasher Code F2 medium severity

Common causes

  • Intermittent dishwasher sensor reading outside expected range.
  • Temporary power-state mismatch after a surge or abrupt cycle interruption.
  • Mechanical restriction in a core dishwasher subsystem (airflow, drain, or movement).
  • Wiring harness connection seated loosely due to vibration over time.

Step-by-step fix

  1. Power-cycle the unit for 3 minutes, then restart a short test cycle.
  2. Inspect accessible filters, vents, or drains specific to your dishwasher and clear debris.
  3. Confirm the appliance is level and stable to avoid false sensor triggers.
  4. Run one empty maintenance cycle and observe whether the code returns.
  5. If repeated, inspect harness connections and service documentation for continuity checks.

Tools you may need

FlashlightMicrofiber clothSmall brushScrewdriver set

Prevention

  • Run monthly maintenance cycles and clean filters on schedule.
  • Avoid overloading and keep installation clearances within manufacturer guidance.
  • Use surge protection where local power quality is inconsistent.

When to stop DIY

Stop and call a licensed technician if the code reappears after two full restart attempts or if you detect heat, smoke, or water leakage.

FAQ

What does F2 mean on Bosch dishwasher?

F2 usually indicates: Overflow state detected.

Can I keep using the appliance with F2?

Use caution. Severity is medium. Stop and call a licensed technician if the code reappears after two full restart attempts or if you detect heat, smoke, or water leakage.

How long does this fix usually take?

Typical first-pass troubleshooting takes 10-35 minutes.