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Vaillant F28 Fault Code Repair – MyBoiler.com
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What does code F28 mean on my Vaillant boiler? - Video
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Vaillant ecotec F28 fault code - Vaillant Boiler Repair Service
![Vaillant Boiler F28 Fault Code [Causes & Repair Advice]](https://cdn.heatingforce.co.uk/wp-content/uploads/2017/08/vaillant-ecotec-plus-review.jpg "Vaillant Boiler F28 Fault Code [Causes & Repair Advice]")