Question about KDS Valiant 6380iPTD-01 Notebook

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Got a f.75 on boiler have to put pressure up to 2.0 bar before it starts

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I take it this is a Vaillant EcoTec boiler? If your having to pressurise to 2.0 before the F75 goes, there's a strong probability there's a problem with the water pressure sensor. These can sometimes just have dirt/sludge in them, and can be cleaned, however a lot of the time they just need to be replaced. F75 can also mean there's a circulation problem through the boiler, and you will get the same fault code. If you have the old rubber hoses on the flow and return pipes, these can be prone to blocking/restricting and Vaillant have actually modified this part whereby by the pipes are solid copper.

Posted on Oct 16, 2013

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