Bauknecht F18

Bauknecht error code F18 indicates: Bauknecht SuperEco & GentlePower Zen Motor Direct Drive Washing Machine: Excessive foam overdosing warning F18; pressure transducer senses suds accumulation preventing drain pump priming..

The primary root cause for Bauknecht code F18 is: On Bauknecht washing machines: High-foaming non-HE detergent used, massive overdose of liquid soap, or partially restricted drain hose trap..

To resolve error code F18: Allow suds to settle naturally for 30 minutes. Run cold rinse cycle without detergent. Clean drain filter and adjust future detergent dosing. Turn selector to Drain/Spin, press Start/Pause button 4 times within 5 seconds to clear fault, or hold Reset for 3s.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Bauknecht code F18 persists, the physical component causing On Bauknecht washing machines: High-foaming non-HE detergent used, massive overdose of liquid soap, or partially restricted drain hose trap. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Mechanical Pressure Switch Contacts / Inductive Frequency Sensor across Across switch spade contacts with harness unplugged; electronic output: 40Hz–50Hz frequency signal. Expected nominal reading is Mechanical: Continuity 0.0Ω–0.2Ω (Empty: 11-12, Full: 11-14). Electronic: 20Ω–45Ω coil resistance.. Tolerance: Mechanical switch contacts must transition cleanly on gentle breath pressure. Coil ~22Ω ±5%..

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.