E12
Russell Hobbs Function Selector / Mode Switch Fault

Oven shows E12 and some functions (e.g., grill or fan) may be disabled.

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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

Worn mechanical function selector switch, Broken selector knob shaft, Dirty or burnt contacts inside selector, Loose wiring on selector terminals

How to Fix / Troubleshooting

Safety first: Disconnect the oven from mains before removing the control panel.

  • Check selector knob: Ensure the knob is not cracked or spinning freely on the shaft. Replace the knob if it does not engage properly.
  • Access selector switch: Remove the front control panel to expose the function selector switch. Inspect for signs of overheating or melted plastic.
  • Tighten connections: Check that all spade terminals on the selector are tight and not oxidised. Clean lightly with electrical contact cleaner if needed.
  • Test switch: Rotate the selector through all positions while observing the internal cam and contacts (if visible). If contacts are burnt or the switch feels loose, replace the entire selector switch.
  • Reassemble and test: After replacement, verify that each function (bake, grill, fan, etc.) operates correctly without E12 appearing.
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Repair Difficulty

Medium 3/5

Required Part

Function Selector Switch
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