F30
De Dietrich Generic System Fault / Self-Diagnosis Error

Oven displays generic fault code, beeps, and stops heating mid-cycle

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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

Intermittent wiring connection, unstable mains voltage, internal control board fault, sensor reading out of range

How to Fix / Troubleshooting

Safety first: Disconnect power before inspecting internal components.

  • Note conditions: Observe when the error occurs (specific mode, temperature, or time). This can help narrow down the faulty circuit.
  • Check connections: Inspect and reseat all major connectors on the main control board, including those for sensors, elements, fans, and the user interface.
  • Verify mains supply: Ensure the oven is on a stable, correctly rated circuit. Fluctuating voltage can trigger generic faults.
  • Test key components: Check the oven temperature sensor, overheat thermostat, and major heating elements for correct resistance.
  • Control board: If all peripheral components test good and the error persists, the main control board may be defective and require replacement.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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