Bosch
Touch Panel / Keypad Failure
Control panel buttons are unresponsive or respond intermittently; display is on.
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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
Worn membrane keypad, Moisture behind control panel, Loose ribbon cable to control board, Faulty touch sensor IC
How to Fix / Troubleshooting
Safety: Unplug the microwave before cleaning the control panel.
- Clean the panel: Wipe the touch surface with a slightly damp cloth and mild detergent, then dry thoroughly. Do not allow liquid to seep around the edges.
- Allow to dry: If the panel was exposed to steam or spills, leave the door open and let the unit air dry for several hours.
- Test specific keys: After reconnecting power, test each button. Note which ones fail; this helps identify a keypad vs. control board issue.
If keys remain unresponsive: The touch panel or its ribbon cable is likely defective and must be replaced from behind the fascia by a Bosch technician.
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Repair Difficulty
Medium
3/5
Required Part
Touch Control Panel
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