LG
Keypad / Touch Control Failure
Buttons on the control panel do not respond or respond intermittently; temperature cannot be adjusted.
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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 or damaged touchpad, Moisture under control overlay, Loose ribbon cable, Failed UI microcontroller
How to Fix / Troubleshooting
Safety: Unplug the unit before working on the control panel.
Steps:
- 1. Clean surface: Wipe the control panel with a dry, soft cloth to remove moisture or residue.
- 2. Power reset: Unplug for 5 minutes, then plug back in to reset the control.
- 3. Access UI board: Remove the control panel and inspect the ribbon cable and connectors. Reseat them firmly.
- 4. Check for corrosion: Look for signs of liquid damage on the UI board. If present, the board should be replaced.
- 5. Replace UI assembly: If specific buttons never work or response is erratic despite good connections, replace the user interface assembly.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board
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