Safety first: Unplug the dryer and allow it to cool completely before working near the heater assembly.

Steps:

Access the heater assembly: On many Candy dryers, remove the rear panel to access the heater box. The NTC sensor is usually clipped or screwed into the heater duct.
Visual inspection: Check the sensor body and wiring for signs of burning, melting, or mechanical damage.
Test the NTC: Disconnect the sensor plug and measure resistance with a multimeter. At room temperature, most Candy NTCs read in the tens of kΩ (e.g., 15–20 kΩ). Infinite or near-zero resistance indicates a fault.
Check wiring continuity: Test from the NTC connector back to the main PCB plug for continuity and wiggle the harness to detect intermittent breaks.
Replace if faulty: Fit a genuine or compatible Candy NTC sensor, ensuring it is firmly seated in the heater duct for accurate temperature sensing.

Final check: Reassemble, clean the lint filter and vents, restore power, and run a warm cycle to confirm E03 is cleared.

Dryer stops mid-cycle or will not start; E03 displayed, often associated with overheating or poor airflow.

Possible Causes