Costway
Display Power or Backlight Failure
Display is blank or very dim, but cooler still runs.
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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
Loose display harness, Failed LED backlight in display, Faulty display PCB, Low-voltage supply issue on main board
How to Fix / Troubleshooting
Safety: Unplug the unit before removing the control panel.
Steps:
- Check power: Confirm the cooler is running (compressor or fans audible). If so, the issue is likely limited to the display.
- Access display: Remove the front/top trim to expose the display control panel. Reseat the ribbon cable or harness.
- Inspect for damage: Look for moisture, corrosion, or burned components on the display PCB.
- Replace display: If connections are good but the display remains blank, replace the display panel assembly.
- Board check: If a new display does not light, the low-voltage supply on the main control board may be faulty and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Display Control Panel
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