Indesit dryer stops shortly after starting, may not heat correctly, F03 error shown
Safety Warning
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
How to Fix / Troubleshooting
Safety first: Unplug the dryer and allow it to cool completely before working near the heater or exhaust duct.
Locate and test NTC:
- Access the exhaust duct: Remove the rear panel. The NTC (temperature sensor) is usually mounted on or near the heater housing or exhaust duct with two wires.
- Visual inspection: Check the sensor and connector for signs of overheating, corrosion, or broken wires. Reseat the connector firmly.
- Measure resistance: Disconnect the NTC and measure its resistance at room temperature. Typical values are in the 5–20 kΩ range (check Indesit service data if available). An open circuit or near 0 Ω indicates a faulty sensor.
- Check harness to PCB: Follow the wires from the NTC to the main control board. Look for pinched or broken wires and repair as needed.
Replace if faulty: If the NTC is out of specification, replace it with a genuine Indesit thermistor/NTC sensor. Reassemble, restore power, and run a test cycle to confirm the error is cleared.
Repair Difficulty
Required Part
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