E1
Bertazzoni Cooktop Overvoltage / Supply Error

Induction cooktop shows E1 and beeps, zone will not operate

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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, Loose power connection, Faulty power module sensing circuit, Electrical surge

How to Fix / Troubleshooting

Safety first: Turn off the cooktop and switch off power at the breaker before inspecting electrical connections.

  • Verify supply voltage: Using a qualified electrician, confirm that the supply voltage matches the rating on the Bertazzoni data plate (e.g., 220–240 V). Overvoltage can trigger E1.
  • Check terminal block: Inspect the cooktop's terminal block for loose screws, discoloration, or melted insulation. Tighten connections and replace any damaged components.
  • Power reset: After correcting any wiring issues, restore power and test the cooktop.
  • Module replacement: If supply voltage is correct and connections are sound, the induction power module may have a defective sensing circuit and should be replaced.

Warning: All electrical work must comply with local codes and should be performed by a qualified electrician.

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Repair Difficulty

Professional Required 5/5

Required Part

Induction Power Module
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