LG
Loss of control power or failed user interface
LG range control panel is unresponsive; display is blank but oven light may still work.
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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
Blown internal fuse on control board, Loose ribbon cable to display, Failed user interface board, Power supply issue to control
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before removing the control panel.
- Check power: Verify the range has full power at the terminal block. If only one leg is present, some functions may work but the control may be dead.
- Inspect control board: Remove the back cover and inspect the control board for an internal fuse. If blown, determine and correct the cause before replacing the fuse or board.
- Check ribbon cables: Reseat the ribbon cable between the display and main control.
- Replace board: If there is proper power but the display remains blank, replace the user interface/display board or the main control board as appropriate for your model.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board or User Interface Board
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