InSinkErator
Intermittent Power Loss / Loose Connection
Disposal starts but then stops abruptly within a few seconds without tripping the red reset button
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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
Loose wire nut in junction box, Faulty wall switch contacts, Loose plug in receptacle (corded models), Failing motor with internal thermal cutout
How to Fix / Troubleshooting
Safety first: Turn off the breaker before inspecting electrical connections.
- Check plug and outlet: For corded InSinkErator units, ensure the plug is fully seated and the outlet is not loose. Replace a worn outlet if the plug wiggles.
- Inspect junction box: For hardwired units, remove the wiring cover and verify all wire nuts are tight and wires are not pulling out.
- Test the switch: Replace the wall switch if it feels hot, crackles, or if the lever is loose.
- Observe behavior: After tightening connections, restore power and test. If the unit still stops after a few seconds and restarts only after cooling, the motor's internal thermal protector may be failing, requiring disposal replacement.
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Repair Difficulty
Medium
3/5
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