F06
De Dietrich Supply Voltage Out of Range / Phase Error

Induction hob shows F06 and all zones are disabled.

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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

Incorrect wiring (single-phase vs two-phase), Loose terminal block connections, Mains voltage too low or too high, Internal power supply fault on main board

How to Fix / Troubleshooting

Safety: Only qualified persons should work on mains connections. Isolate power at the breaker before opening the terminal cover.

  • Check supply configuration: Compare the wiring at the hob terminal block with the De Dietrich installation diagram (usually on the underside of the hob). Ensure bridges and phase connections are correct for your supply type.
  • Tighten terminals: Inspect the terminal block for signs of overheating or loose screws. Tighten all connections firmly.
  • Measure voltage: Using a multimeter, verify that the supply voltage at the terminal block is within the specified range (typically 220–240 V for EU models). If outside range, contact an electrician.
  • Reset: After correcting any wiring issues, power the unit off for 5 minutes, then restore power and test.

Note: If F06 persists with correct wiring and stable mains, the internal power supply on the main board may be faulty and the board should be replaced.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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