Dishwasher shows E8; water may be too hot or not heating correctly, sometimes accompanied by steam escaping when door is opened.

Safety first: Unplug the dishwasher and allow it to cool fully before working near the sump or heater.

Step-by-step checks:

• Locate NTC sensor: On Vestel dishwashers, the NTC is usually mounted in the sump or integrated into the heater housing.
• Inspect connection: Check the NTC plug and wiring harness for corrosion, moisture ingress, or loose pins. Dry and reseat the connector.
• Measure resistance: Disconnect the NTC and measure its resistance at room temperature. Compare with Vestel specifications (commonly in the 10–50 kΩ range). An infinite or near-zero reading indicates a faulty sensor.
• Check for damage: Inspect the sensor body for cracks or swelling. Replace if any physical damage is visible.
• Control board: If a new NTC does not resolve E8 and wiring is intact, the main PCB may have a defective temperature measurement circuit and require replacement.

After replacing the NTC or PCB, run a full wash cycle to confirm stable heating and that E8 does not return.