Miele F4160

Miele error code F4160 indicates: The automatic detergent dosing system does not work and an error is reported during the sampling phase..

The primary root cause for Miele code F4160 is: On older models, the pressure switch detects an absence of water. On recent models, a connection fault (bridging on the 40X connector) on the dosing module is detected..

To resolve error code F4160: 1. For older models: check the water inlet and pressure switch B1/1. 2. For recent models: turn off the device. 3. Inspect the 40X connector on the dosing module. 4. Check the continuity of the jumper between GND and IN pins 7. 5. Repair the wiring or replace the module if necessary.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Miele code F4160 persists, the physical component causing On older models, the pressure switch detects an absence of water. On recent models, a connection fault (bridging on the 40X connector) on the dosing module is detected. 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.