Dishwasher stops shortly after start and displays E02.

Safety first: Disconnect power before removing panels or touching wiring.

E02 usually indicates a problem with the temperature sensor (NTC) in the sump or heat exchanger.

• Step 1 – Power reset:
  • Turn off power for 5 minutes and retry a cycle. If E02 reappears, continue.
• Step 2 – Access the NTC:
  • Remove the lower kick plate and side panels if necessary (varies by model).
  • Locate the NTC sensor in the sump area or integrated into the heat exchanger on the left side.
• Step 3 – Visual and connection check:
  • Inspect the NTC connector for corrosion or moisture.
  • Unplug and replug the connector several times to clean contacts.
  • Check the wiring harness for damage or rodent bites.
• Step 4 – Resistance test (for trained users):
  • Disconnect the NTC from the harness.
  • Measure resistance with a multimeter at room temperature; typical NTC values are in the 10–60 kΩ range (check service data if available).
  • If reading is open (infinite) or near 0 Ω, the sensor is defective.
• Step 5 – Replacement:
  • Twist or unclip the NTC from its housing in the sump or heat exchanger.
  • Install the new Siemens NTC sensor, ensuring the sealing O-ring is properly seated to prevent leaks.
  • Reconnect wiring and reassemble panels.

If E02 persists with a known-good NTC, the control board's sensor input may be faulty and require replacement.