F24
Blomberg Supply Voltage Out of Range

F24 error on induction cooktop; entire cooktop may shut down.

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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 mains voltage (too high or too low), Loose connection at terminal block, Shared circuit causing voltage drop, Internal power supply fault on control board

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before checking the terminal block. Only measure live voltage if you are trained and have proper tools.

  • Verify supply voltage: Using a multimeter, confirm that the supply voltage at the terminal block matches the rating on the cooktop's data plate (e.g., 220–240 V).
  • Inspect terminal block: With power off, check that all screws are tight and wires are not burnt or discolored. Tighten loose connections and replace any damaged wiring.
  • Avoid shared circuits: Ensure the cooktop is on a dedicated circuit of the correct amperage as specified by Blomberg.
  • Control board check: If supply voltage is correct and F24 persists, the internal power supply on the control board may be defective and the board should be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board / Power Supply Section
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