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home Fix label Heating label_important Home Heating Systems category Vaillant

My Vaillant Turbomax plus boiler is showing a fault code of F.22. ?

My Vaillant Turbomax boiler is showing a fault mode of F.22. How do I repair this?
Helen, February 2009
home Fix label Heating label_important Home Heating Systems category Vaillantdone
It could be a number of things.
Does the boiler fire up, then stop when the temperature goes too high? Is the fan working? If yes.
1) try it on water only. It is possible that a flow sensor is
not working or 3-way valve stuck in heating mode.

John, January 2010
hmmn same as mine i have no idea what to do!!

olisa, December 2009
Sorry - I can't answer your question, I wish I could - but want to say that my boiler has just thrown up thesame problem!! F.22. I wonder if this is a common problem for a certain batch of boilers? When did you get your boiler installed, please?

Joan, February 2009
F.22 Dry fire protection No water in appliance, pump cable defective, pump
blocked or defective, pump output too low

a, February 2009
link Click here to see other fixes for Vaillant.

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