Dishwasher completes cycle but dishes are cold and not properly cleaned; E6 appears related to temperature sensing.

Safety first: Disconnect the dishwasher from mains power before removing panels.

• Locate the NTC sensor: On many Becken dishwashers, the NTC is mounted in the sump or integrated with the heater/pump assembly at the base.
• Inspect connections: Remove the lower front or side panel to access the sensor. Check the plug and wiring for corrosion, moisture, or loose pins. Clean and reseat the connector.
• Resistance test (advanced): With the sensor disconnected and the appliance unplugged, measure resistance across the NTC terminals using a multimeter. At room temperature, it should typically read between 10–50 kΩ and change smoothly if warmed slightly. Infinite or near-zero resistance indicates a faulty sensor.
• Check harness continuity: If the sensor tests good, check continuity from the sensor connector to the control board connector to rule out broken wires.
• Replace faulty parts: Replace the NTC sensor if defective. If wiring and sensor are good, the main control board may be at fault and require replacement.

Temperature sensor diagnosis requires careful handling; if unsure, consult a professional.