F3
AEG Stuck Ignition Switch or Wet Control

AEG gas hob shows F3 and ignition clicks continuously

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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

Liquid spill under control knobs, Stuck microswitch on gas tap, Shorted ignition wiring harness

How to Fix / Troubleshooting

Gas and electrical safety: Turn all burner knobs to OFF. Unplug the hob or switch off power to the ignition system.

Drying and cleaning:

  • Remove the control knobs and gently dry the area around the ignition microswitches with a cloth.
  • Allow the hob to air dry for several hours if a large spill occurred.
  • Do not use a hairdryer or heat gun directly on plastic parts.

If F3 or continuous clicking persists after drying:

  • A microswitch may be stuck closed or the wiring harness may be shorted.
  • Accessing and replacing the switch requires removing the hob top and should be done by a qualified technician.
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Repair Difficulty

Medium 3/5

Required Part

Ignition Microswitch
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