Bosch
User Interface / Keypad Failure
Bosch water heater display or control panel is unresponsive, but unit still heats water
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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
Failed display board, Loose ribbon cable between display and main board, Moisture intrusion into control panel, Stuck or damaged buttons
How to Fix / Troubleshooting
Safety first: Turn OFF power before removing the front cover or control panel.
- Inspect connections: Remove the front cover and check the ribbon cable or harness between the display board and main control board. Reseat connectors.
- Check for moisture: Look for signs of condensation or water ingress around the control panel. Dry the area thoroughly and correct any leaks or humidity issues.
- Button test: Gently press each button to feel for normal travel. If buttons are stuck, the overlay or keypad may need replacement.
- Replace display board: If wiring is intact and the panel remains unresponsive, replace the user interface board with a Bosch-approved part.
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Repair Difficulty
Medium
3/5
Required Part
User Interface / Display Board
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