Samsung Temperature Sensor / Heater Feedback Error

Dishwasher displays 2E and may not complete cycles.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Faulty thermistor, Loose thermistor connector, Wiring harness damage, Main PCB sensing circuit fault

Safety: Turn off power before working on the sump or wiring.

Inspect thermistor connection: Access the sump area and verify the thermistor plug is fully seated.
Test thermistor: Measure resistance and compare to Samsung specifications. Replace if out of range.
Check harness: Look for pinched or broken wires between the thermistor and main PCB.
PCB replacement: If sensor and wiring are good, the main control board may be defective and require replacement.

Hard 4/5

Thermistor (Temperature Sensor)

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