E12
Grundig Grill Element Overheat / Protection Fault

Microwave shows E12 and may shut down when using grill or combination modes.

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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

Open grill thermal cut-out, Failed grill element, Blocked upper ventilation, Loose grill wiring

How to Fix / Troubleshooting

Safety first: Unplug the microwave and allow the grill element to cool completely.

Step-by-step checks:

  • 1. Check ventilation: Ensure there is adequate clearance above the microwave and that top vents are not blocked.
  • 2. Inspect grill element: Look inside the cavity at the grill element for visible breaks, burn marks, or sagging.
  • 3. Access grill thermal cut-out: Remove the outer cabinet to locate the grill thermal cut-out (thermostat) near the grill element or upper cavity.
  • 4. Test continuity: With a multimeter, check the grill thermal cut-out and grill element for continuity. An open reading indicates a failed component.
  • 5. Replace faulty parts: Install a new grill thermal cut-out or grill element as required, using Grundig-specified parts and temperature ratings.

If E12 persists after replacing defective components and ensuring proper ventilation, the control PCB may be misreading the grill protection circuit and should be checked by a technician.

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Repair Difficulty

Hard 4/5

Required Part

Grill Thermal Cut-Out
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