Montpellier Function Selector Switch Failure

Oven light works but fan and heating do not start when a function is selected.

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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 or burnt contacts in function selector, Broken selector shaft, Loose wiring on selector terminals, Internal arcing damage

How to Fix / Troubleshooting

Safety first: Turn off power at the mains before removing the control panel or knobs.

Steps to check:

  • Knob and shaft: Remove the function knob and check that the shaft is not cracked or spinning freely.
  • Access selector: Remove the front panel to expose the selector switch.
  • Visual inspection: Look for burnt or discoloured contacts and melted plastic.
  • Continuity test: Using the wiring diagram, test continuity between common and output terminals in each function position.
  • Replace selector: If contacts are burnt or continuity is incorrect, replace the function selector switch with a Montpellier-compatible part.
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Repair Difficulty

Medium 3/5

Required Part

Function Selector Switch
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