Microwave shows E19 and may shut down when using grill or convection functions on combi models.

Safety first: Unplug the appliance and allow it to cool fully.

Step-by-step checks:

• 1. Test microwave-only mode: If normal microwave heating works but convection or combination fails with E19, the fault is in the convection circuit.
• 2. Inspect convection fan: Look at the rear wall of the cavity for the convection fan cover. Listen during operation for fan noise; if silent, the fan may be faulty.
• 3. Access rear components: Remove the cabinet and, if necessary, the rear panel to reach the convection heater and fan.
• 4. Test the convection element: Disconnect and measure resistance. An open circuit indicates a failed element.
• 5. Test the convection fan motor: Check for free rotation and measure resistance. Replace if seized or open.
• 6. Check thermal cut-outs: Test any thermal cut-outs in the convection circuit for continuity and replace if open.