F3
Clatronic Temperature Sensor Wiring Fault

F3 is displayed, and the oven will not start; this is often associated with sensor wiring issues.

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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.

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Possible Causes

Loose sensor connector at the control board, damaged sensor harness insulation, oxidized connector pins, intermittent break in the cable

How to Fix / Troubleshooting

Safety first: Disconnect mains power before accessing internal wiring.

  • Inspect connectors: Locate the NTC sensor connector on the control PCB and at the sensor end. Unplug and replug several times to clean contacts.
  • Check cable routing: Ensure the sensor cable is not pinched between panels or touching hot elements, which can damage the insulation.
  • Continuity test: With the sensor disconnected at both ends, test each wire from one end to the other for continuity. Flex the cable gently while testing to detect intermittent breaks.
  • Replace harness: If continuity is lost or insulation is damaged, replace the sensor wiring harness with a compatible Clatronic part.
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Repair Difficulty

Medium 3/5

Required Part

Temperature Sensor Harness
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