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Mend Vaillant Boiler Fault 26

valliant boiler fault code f26?

valliant boiler fault code f 26 what does it mean ,is there a site with all code listed, with suggested repairs

nemodiver1
April 2007
VaillantHeating, Home Heating SystemsBoiler Fault 26
f26 means possible pump failure or check the nct on the return.

hi-spec plumbing
April 2007
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