Nibe User Interface / Keypad Failure

Water heater display is on but buttons or touch controls do not respond.

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.

Possible Causes

Faulty keypad membrane, damaged touch panel, loose ribbon cable to main board, software freeze

Safety first: Turn off power before disconnecting any control cables.

Step 1 – Power cycle:
- Turn off power for 1–2 minutes, then restore and test the controls.
Step 2 – Inspect connections:
- Remove the front panel and check the ribbon cable between the display and main board.
- Reseat the connector carefully.
Step 3 – Check for moisture:
- Look for condensation or water ingress around the display; dry gently if present.

If controls remain unresponsive, the user interface module may need replacement.

Medium 3/5

User Interface / Display Module

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