Hob displays Er22 and does not respond to touch

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

Power-up with wet or covered control panel, Electrical noise during initialization, Faulty touch sensor IC on control board

Steps:

Turn off the hob at the mains isolation switch.
Thoroughly dry the control area and ensure it is free from any objects.
Wait at least 5 minutes, then restore power without touching the panel for 1–2 minutes to allow auto-calibration.
Try operating the hob again.

If Er22 reappears on every power-up, the touch control board is likely defective and should be replaced by an AEG service technician.

Hard 4/5

Touch Control PCB

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