Lanbo
Display Power or UI Board Failure
Display is completely blank, but interior 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 low-voltage fuse on main board, Failed display control board, Loose display power connector, Faulty power supply section on main board
How to Fix / Troubleshooting
Unplug the unit before accessing electronic boards.
- 1. Confirm cooling:
- Listen for compressor and fans; if they run, the main board may still be working and only the display is out.
- 2. Access control area:
- Remove the control panel and inspect the display control board for burn marks or damaged components.
- 3. Check connectors:
- Ensure the low-voltage connector from the main board to the display is firmly seated.
- 4. Inspect main board fuse:
- On some models, a small fuse protects the display circuit; replace only with the same rating if blown.
- 5. Replace display board:
- If wiring and fuse are good, install a new Lanbo display control board.
- 6. If still blank and no cooling:
- The main control board may have failed and should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Display Control Board
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