E15
Astracast Stuck Switch or Miswired Circuit

Astracast disposal runs continuously and does not turn off even when the wall switch is in the OFF position.

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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

Welded contacts in wall switch, Astracast unit wired to constant live instead of switched live, Short between line and load in junction box, Incorrect connection in multi-gang switch box

How to Fix / Troubleshooting

Safety First: Immediately turn OFF power at the breaker. Do not rely on the wall switch if the unit ignores it.

  • Step 1 – Verify wiring diagram: Refer to the Astracast installation manual and your home's wiring diagram to confirm correct connections.
  • Step 2 – Inspect wall switch: Remove the switch and test it with a continuity meter. Replace if it shows continuity when in the OFF position.
  • Step 3 – Check junction box wiring: Ensure the Astracast live feed is connected to the switched live, not the permanent live. Correct any miswiring and secure all connections.
  • Step 4 – Test operation: Restore power and test the switch. The disposal should start and stop reliably.
  • Step 5 – Consider air switch option: For added safety, some Astracast-compatible models can be controlled by a countertop air switch, reducing electrical risk near water.

Warning: If you are not comfortable working with mains wiring, hire a licensed electrician.

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Repair Difficulty

Hard 4/5

Required Part

Wall switch controlling Astracast disposal
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