5 Common Faults of a Vaillant Boiler and How to Fix Them
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![Most Common Central Heating & Boiler Problems Explained [And Fixed]](https://cdn.heatingforce.co.uk/wp-content/uploads/2022/01/Boiler-problems.jpg "Most Common Central Heating & Boiler Problems Explained [And Fixed]")
Most Common Central Heating & Boiler Problems Explained [And Fixed]
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