Dishwasher displays F03; cycle may stop with water left in the tub or may not progress.

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

Open or shorted NTC temperature sensor,Loose NTC connector,Wiring fault between NTC and control board,Control board analog input failure

Safety first: Disconnect power.

Locate the NTC: The temperature sensor is usually mounted in the sump or heater housing.
Test the sensor: Disconnect the NTC and measure resistance at room temperature. Compare with Hotpoint specifications (commonly 10–50 kΩ). Infinite or near-zero resistance indicates a fault.
Check wiring: Inspect the harness from the NTC to the control board for damage or loose connectors.

Replace the NTC if faulty. If the sensor and wiring are good, the control board may need replacement by a technician.

Medium 3/5

NTC Temperature Sensor

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