Princess Safety Interlock or Overheat Protection Activation

Unit beeps repeatedly and stops cooking before the timer ends, without showing an error code.

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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

Basket microswitch intermittently opening, Overheat thermostat cycling due to poor ventilation, Loose internal connector, Firmware safety timeout

How to Fix / Troubleshooting

Safety first: Unplug the unit before checking internal switches.

Steps to troubleshoot:

  • Check basket fit: Ensure the basket is fully inserted and not loose. Wiggle it gently during operation to see if the unit stops.
  • Inspect microswitch: Access the basket/door microswitch and verify that its actuator is not worn. Test continuity while moving the basket slightly.
  • Improve ventilation: Make sure vents are clear and the unit is not overheating.
  • Secure connectors: Reseat connectors on the main PCB, especially those for the sensor and microswitch.
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Repair Difficulty

Medium 3/5

Required Part

Basket / Door Microswitch
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