Miele Dishwasher Error Code F67

The F67 error code on a Miele dishwasher indicates that the circulation pump is running at a lower speed than expected. The control board monitors pump performance beginning 10 seconds after the circulation pump starts, and if the rotational speed falls below the required threshold during this check, the F67 code is triggered. Importantly, the dishwasher does not stop the current program when this fault is detected, so the cycle may complete, but wash performance is likely to be compromised because water is not being circulated with sufficient force through the spray arms.

The circulation pump is responsible for drawing water from the sump and pressurizing it through the spray arm system to clean dishes. When its speed is too low, reduced water pressure results in poor cleaning across all rack levels. The most frequent mechanical cause is a partial obstruction inside the pump housing. Food debris, broken glass, fruit pits, or other foreign objects can enter the sump and partially jam the pump impeller, preventing it from reaching full speed without completely stopping it. This is why the first diagnostic step is to inspect and clean the pump and remove any foreign material.

Beyond physical obstructions, low pump speed can also result from a worn or failing pump motor. As the motor's windings or bearings degrade, it may still run but lose the torque necessary to maintain rated speed under load. Electrical issues such as a loose connection to the pump or a fault in the control board's pump speed regulation circuit can also produce this symptom. Proper diagnosis involves ruling out obstructions first before evaluating the pump motor and associated wiring.