Elnur User Interface / Keypad Fault

Boiler display works but buttons or controls do not respond properly.

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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

Stuck or worn buttons, Moisture ingress into control panel, Faulty display PCB, Damaged communication cable to main PCB

How to Fix / Troubleshooting

Safety first: Isolate power before removing the front fascia or display panel.

  • Check for lock mode: Ensure the boiler is not in child-lock or installer-lock mode. Refer to the user manual to disable any lock.
  • Inspect keypad: Look for signs of physical damage or liquid spills on the control panel. Dry any moisture and clean gently with a soft cloth.
  • Reseat cables: Disconnect and reconnect the ribbon cable between the display and main PCB to ensure good contact.
  • Replace display board: If buttons remain unresponsive, the user interface PCB may need replacement.
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Repair Difficulty

Medium 3/5

Required Part

User Interface / Display Board
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