E09
Breville Low Voltage / Power Supply Error

Microwave displays E09; interior light may not come on and unit will not start.

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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

Faulty internal low-voltage power supply on control board, Loose power cord connection, Damaged line filter or fuse, Power surge damage to control PCB

How to Fix / Troubleshooting

Safety: Unplug the microwave before moving or inspecting it. Internal fuses and line filters should be serviced only by trained personnel.

User-level steps:

  • 1. Check outlet: Plug another appliance into the same outlet to confirm proper voltage. Avoid using extension cords or power strips.
  • 2. Inspect power cord: Look for cuts, kinks, or burn marks on the Breville power cord. If damaged, do not use the microwave.
  • 3. Power reset: Unplug for 10 minutes, then plug back in and test.

If E09 remains, the internal power supply or fuse may be faulty. Do not attempt to replace internal fuses yourself; contact a qualified technician or Breville service center.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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