Ebac
Display Backlight / UI Power Fault
Display is blank but unit appears to run (fan/compressor on)
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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 PCB, Loose display connector, Blown low-voltage fuse on UI board, Damaged display cable
How to Fix / Troubleshooting
Safety: Unplug the unit before accessing the control panel.
Steps:
- 1. Basic reset: Unplug for 5 minutes and reconnect to rule out a temporary glitch.
- 2. Inspect connections: Remove the control panel and check the connector between the main PCB and the display PCB. Reseat and inspect for damage.
- 3. Voltage check: With caution and the unit powered, measure low-voltage supply to the display board (typically 5–12 V DC). If absent, the main PCB or wiring is at fault.
- 4. Replace display PCB: If supply voltage is present but the display remains blank, replace the display/user interface PCB.
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Repair Difficulty
Medium
3/5
Required Part
Display / User Interface PCB
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