Induction cooktop displays Er42, some or all zones inoperative

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.

Possible Causes

Incorrect spare part combination (wrong glass or module), Corrupted configuration data, Faulty main control board

Safety first: Disconnect the appliance from mains power.

Technician steps:

Verify that the glass ceramic top and power module part numbers are compatible for this Siemens model.
Use Siemens service mode to reconfigure or calibrate the cooktop if supported.
If configuration cannot be restored, replace the main control module with the correct part number.

This error usually appears after incorrect part replacement and should be handled by an authorized service center.

Professional Required 5/5

Main Control Board

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