Roca
Display Module Failure
Furnace display is on but completely blank or unreadable (no characters, or garbled text)
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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
Faulty LCD/LED display board, Loose ribbon cable, Moisture damage to user interface, PCB communication fault
How to Fix / Troubleshooting
Safety first: Turn off power before removing the control panel cover.
- Check connections: Reseat the ribbon cable or harness between the display and main PCB.
- Dry moisture: If condensation is present, dry the area and improve ventilation around the furnace.
- Inspect for damage: Look for cracks in the display board or signs of liquid ingress.
- Replace display: If the display remains blank or unreadable, replace the user interface module with the correct Roca part.
Warning: Do not spray cleaners directly onto the control panel; this can cause damage.
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Repair Difficulty
Medium
3/5
Required Part
User Interface / Display Board
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