E11
McAlpine
Wall Switch / Control Circuit Fault
Disposal will not start from the wall switch, but starts if the built-in air switch (if fitted) is used; LED flashes once-long, once-short.
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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
Faulty wall switch contacts, Loose live conductor at McAlpine terminal block, Damaged control cable, Miswired switch loop
How to Fix / Troubleshooting
Safety first: Isolate power at the breaker before opening any switch or junction box.
- Test the wall switch: Replace the wall switch with a known-good unit or test continuity with a multimeter (qualified persons only).
- Inspect wiring at disposal: Remove the lower cover on the McAlpine unit and check that live and neutral conductors are firmly secured in the terminal block.
- Check for damaged cable: Follow the cable from the switch to the disposal, looking for pinched or cut insulation. Replace the cable if damaged.
- Confirm correct wiring: Ensure the switch is wired in the live conductor only, not neutral, according to local regulations.
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Repair Difficulty
Medium
3/5
Required Part
Wall Switch / Control Cable
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