Error f28 on Vaillant Boilers
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![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]")
Vaillant Boiler F28 Fault Code [Causes & Repair Advice]
Vaillant ecotec F28 fault code - Vaillant Boiler Repair Service
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Vaillant F28 Error/Fault Code: What it is (and how to fix it) | Heatable
