This review is about the Vaillant ecoTEC+ 800 series combination boilers. The Vaillant ecoTEC+ 800 series boilers are the choice of many installers all across the UK, they are undoubtedly the best main stream boilers on the market.Vaillant have been in the heating industry for over 130 years ... Read review
AFTER 2YRS OF NO TROUBLE THE WATER PRESSURE HAS STARTED TO DROP.HAVE CHECKED FOR LEAKS CANNOT FIND NONE,ALL RADS ARE FULL.HAVE CHECKED PRESSURE RELIEF VALVE SEEMS FINE .CAN ANYBODY HELP ME ON THIS ONE. JIM.
We had a similar problem with our Boiler although ours is a Vokera. It turned out the PRV pipe had perished and needed to be replaced. Not sure how much this would cost as we have a maintence aggreement with e.on.