F3
Caple
Radiant Element Temperature Sensor Fault
Electric ceramic hob shows F3 and one radiant zone does not heat.
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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
Open circuit sensor in radiant element, Damaged wiring to sensor, Faulty control board sensor input
How to Fix / Troubleshooting
Safety first: Isolate the hob at the mains and allow the glass to cool completely before removal.
Technician steps:
- Lift the hob and access the underside to locate the affected radiant heating element.
- Identify the built‑in temperature limiter or sensor on the element and test for continuity.
- Check the harness from the sensor to the control PCB for breaks or loose connectors.
- If the sensor is open or intermittent, replace the complete radiant element assembly (sensor is often integrated).
After replacement, reassemble and test the zone at low power first to confirm correct cycling.
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Repair Difficulty
Hard
4/5
Required Part
Radiant Heating Element
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