Microwave-combination Toshiba oven shows a magnetron or microwave system error; microwave mode will not start.
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.
Possible Causes
How to Fix / Troubleshooting
Critical safety warning: Microwave systems contain high-voltage components that can retain a lethal charge even when unplugged. Only trained technicians should service the microwave section.
- Basic user checks only: Verify that the door closes properly and that the door latches engage fully. Clean the door seals and latch area.
- Do not open microwave compartment: Do not attempt to access the magnetron, transformer, or HV capacitor yourself.
- Professional service: If the error persists, contact an authorized Toshiba service center for diagnosis and repair of the microwave system.
Operating a faulty microwave system can result in fire or radiation leakage; discontinue use until repaired.