Tweeny High Inrush Current / Short Circuit

Garbage disposal trips the circuit breaker when turned on

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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

Shorted motor windings, Jammed rotor causing locked-rotor current, Incorrectly sized breaker, Damaged power cord or internal wiring

How to Fix / Troubleshooting

Safety First: Leave the breaker OFF until the cause is identified. Do not repeatedly reset.

  • Step 1 – Check for jam: With power OFF, use the jam-buster wrench to ensure the rotor spins freely.
  • Step 2 – Inspect cord and wiring: Look for visible damage to the Tweeny power cord and junction box connections.
  • Step 3 – Verify breaker size: Confirm the breaker amperage matches the disposal's rating on the nameplate.
  • Step 4 – Test after clearing jam: If a jam was found and cleared, reset the breaker once and test briefly with water running.

If the breaker still trips immediately, the motor or wiring is likely shorted and the unit should be replaced.

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Repair Difficulty

Hard 4/5

Required Part

Tweeny motor assembly
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