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Thanks I will get him back now I have some ammunition and correct information

Thanks for the response my installer was a gas registered installer. I am not looking to fix this myself I am looking to get answers to take to my installer so he does not keep harping on about seeping valves. As the expansion tank was checked at the service I could rule that out that would...

Hi all apoligies if this has been covered before but I dont seem to be able to find any thing. I have a vaillant ecotec 28 pro that was fitted in oct 2012 ever since it was fitted I have been getting very random F22 faults code with 0.0 pressure reading. as this is understood to be low pressure...