We woke up this morning to no heating or hot water. Error message shows S97 which after looking at the manual says that the pressure switch is faulty. How can I fix this or do I need to get someone out?
is it a vaillant ?? if it is it is the pressure switch,or the pressure vesel, or the pump ,the boiler has not seen the presure ,its to stop dry firing ,phil
philip
February 2011
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