F3
Hoover
Oven Temperature Sensor Circuit Open
Oven display shows F3 and the oven will not start a heating cycle.
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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
Broken sensor lead, Disconnected plug at control board, Sensor connector corrosion, Damaged harness from heat
How to Fix / Troubleshooting
Safety first: Isolate the cooker from the mains.
- Access rear: Pull the cooker out carefully (protect flooring) and remove the rear panel.
- Check connections: Locate the sensor wiring from the oven cavity to the control board. Ensure the plug is fully seated and not burnt.
- Inspect harness: Look for melted insulation or pinched wires where they pass near hot areas.
- Continuity test: With a multimeter, check continuity from the sensor plug to the control board connector.
- Repair/replace: Replace the oven temperature sensor or wiring harness if open‑circuit. If wiring and sensor are good, the control board input may be faulty.
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Repair Difficulty
Hard
4/5
Required Part
Oven Temperature Sensor (NTC Probe)
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