Hoval Control Panel / Keypad Failure

Boiler display is on but unresponsive to button presses, heating and DHW continue in last mode

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 display/keypad module, Moisture ingress into control panel, Damaged ribbon cable between panel and PCB

Safety: Isolate power before removing the control panel.

Dry panel: If condensation or water has entered the panel, allow it to dry completely. Identify and fix the source of moisture (e.g., flue leak).
Check ribbon cable: Reseat or replace the flat cable connecting the display to the main PCB.
If buttons remain unresponsive, replace the display/keypad module with a Hoval-approved spare.

Medium 3/5

Display / Keypad Module

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