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Miele dishwasher F12 error, how to fix?

The F12 error code on a Miele dishwasher typically indicates a circulation pump issue. Follow these steps to troubleshoot and potentially fix the problem: 1. Turn Off the Dishwasher: Start by turning off the dishwasher and unplugging it from the power source for safety. 2. Check for Blockages: Inspect the dishwasher's filters, spray arms, and drain pump for any obstructions. Blocked filters or spray arms can affect water circulation. Remove any debris you find. 3. Clean the Filters and Spray Arms: Remove the filters and spray arms. Clean them thoroughly to ensure they're not clogged with debris or mineral deposits. 4. Run a Test Cycle: After cleaning, run a short test cycle to see if the F12 error code persists. Monitor the dishwasher during the cycle to ensure proper water circulation. 5. Check for Leaks: Inspect the dishwasher and the area around it for signs of water leakage. A leak could affect water circulation and trigger the error. 6. Check the Circulation Pump: The circulation pump might be malfunctioning, causing inadequate water flow. If you're comfortable with appliance repairs, you can test the pump for continuity using a multimeter. If it's found to be faulty, consider replacing it. 7. Restart the Dishwasher: After addressing possible causes, restart the dishwasher and observe if the F12 error code reappears. 8. Contact Customer Support or Technician: If you're unable to resolve the F12 error code or if the issue is complex, it's recommended to contact Miele's customer support or a professional appliance technician. They can provide expert assistance and diagnose any internal problems. Remember to prioritize safety when working with appliances. If you're unsure about any step or if the issue is beyond your expertise, seeking professional help is the best approach to ensure the dishwasher is fixed correctly and safely.
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