E18
Rangemaster Nuisance Thermal Trip

Garbage disposal trips the internal reset button frequently, even with light loads.

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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

Oversensitive or failing thermal overload, restricted cooling due to dust and grease, partially shorted motor windings, overvoltage or undervoltage supply

How to Fix / Troubleshooting

Safety first: Turn off power before cleaning or inspection.

  • Clean exterior: Wipe dust and grease from the motor housing and ensure ventilation slots (if present) are not blocked.
  • Reduce load: Avoid continuous operation for more than a minute at a time. Feed waste gradually with plenty of cold water.
  • Check for binding: Confirm the impeller plate spins freely with the hex key. Any drag increases current draw and heat.
  • Monitor operation: If the reset trips even with minimal use and free rotation, the overload or motor is failing. Replacement of the disposal is usually required, as overload devices are integrated.
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Repair Difficulty

Medium 3/5

Required Part

Thermal overload protector
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