WHEN USEING HOT WATER ON MY COMBI THE GUAGE PRESSURE DROPS AND WHILE IT IS RUNNING I HAVE TO FILL THE BOILER UP TO THE RIGHT PRESSURE 1.5 IM AFRAID IF I DONT IT MAY DO SERIOUS DAMAGE THIS ONLY HAPPENS WHEN RUNNING A BATH PROLONGED USE WHEN USEING CH NO PRESSURE LOSS ANYONE HELP
i have sorted problem myself after trying most things it turned out to be pressure relief valve only when pressure built up to max did it start to drip when i say max i mean running temp on my boiler,i hope it will help someone else if they have the same prob XPSDEN.
denis
February 2010
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
