Bosch induction cooktop shows Er22 and beeps; touch controls are unresponsive.

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

Liquid spill on touch area, Condensation under glass, Shorted touch sensor, Damaged UI board

Safety first: Turn off power at the breaker to avoid accidental activation.

Clean and dry: Wipe the glass surface thoroughly. Remove any spills around the touch controls.
Allow drying time: Leave the cooktop powered off for several hours to allow internal moisture to evaporate.
Power reset: Restore power and test. If Er22 returns immediately with a dry surface, the touch control board may be shorted.
Replace UI board: Remove the glass and replace the touch control module if moisture damage or corrosion is visible.

Medium 3/5

Touch Control Module

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