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Linda GarzaJul 27, 2025
What to do if Vaillant Temperature Controller displays a heating installation fault message?
- DDerrick AndersenJul 27, 2025
If your Vaillant Temperature Controller shows a heating installation fault message, here's what you can do: * First, press the 'Back' button (left-hand selection button) to return to the basic display. * Then, navigate to 'Menu > Information > System status > Status' to read current fault messages. * If the 'Status' setting level displays 'Fault', use the right-hand function key for 'Display'. If these steps don't resolve the issue, it's recommended to inform a skilled tradesman.
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