Microwave shows E19; on some models this is associated with inverter-based power control (if equipped).

Safety first: Unplug the microwave. Inverter circuits operate at high voltage and frequency; only trained technicians should service them.

• Confirm model type: Check the rating label or manual to see if your Hansa microwave uses inverter technology. E19 is typically specific to these models.
• Avoid repeated restarts: Do not keep trying to start the microwave with E19 present; this can further damage the inverter.
• External checks only: Verify that ventilation is adequate and vents are clean, as overheating can trigger inverter faults.
• Professional service: A technician should test the inverter module, magnetron, and control signals. Replace the inverter module and/or magnetron as indicated.

Warning: Inverter modules can retain dangerous charge; do not open or probe them without proper training.