My Vaillant Ecomax 600 looks like its running normally but we're not getting any hot water out of any taps. The heat (radiators) is working normally and there are no fault codes.
try when heating has been off for a while and pipework cold, run hot tap and feel heating pipes under boiler. if one ch pipe (generally one of three 22mm rather than 15mm)gets hot divertor valve could be the problem
