Thermador MAG error code

Magnetron or high-voltage circuit fault

No microwave heat points to the magnetron or high-voltage circuit — diagnosed and repaired by a technician, as it carries high voltage.

Likely causes

  • Failed magnetron
  • High-voltage diode or capacitor fault
  • HV transformer fault

How we diagnose & fix it

Because a code points to a likely area rather than an exact part, we run a full on-site diagnosis to confirm the real cause — testing the components above and the wiring and controls behind them. You get a clear, flat-rate quote before any work begins, and most MAG faults are resolved on the first visit with quality parts and a parts-and-labor warranty.

Appears on

Seeing this code on your Thermador? Book a diagnosis and we’ll confirm the exact cause on site.

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