Miele F134

Miele error code F134 indicates: The device suddenly stops during operation and displays an overheating error, potentially accompanied by a hot smell..

The primary root cause for Miele code F134 is: The temperature inside the device has exceeded a critical safety threshold. This could be due to a heater relay stuck in the closed position, a faulty temperature sensor giving a reading that is too low, or an obstruction to the ventilation..

To resolve error code F134: Unplug the appliance immediately and allow it to cool completely. Check that the ventilation holes are not blocked. Check the heating relay on the power board. Test the temperature probe to verify its accuracy at room temperature.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Miele code F134 persists, the physical component causing The temperature inside the device has exceeded a critical safety threshold. This could be due to a heater relay stuck in the closed position, a faulty temperature sensor giving a reading that is too low, or an obstruction to the ventilation. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test NTC Temperature Sensor Probe (Thermistor) across Across sensor pins 1-2 (unplugged harness). Expected nominal reading is 4.8kΩ–12kΩ (at 20°C–25°C). Tolerance: Negative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit..

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.