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Topping up combi boiler?

I have changed a radiator on my Vaillant combi boiler operated central heating system. How do I bring the pressure back up to a sensible operating level?

Rachael
November 2011

Vaillant Heating, Home Heating Systems Combi Boiler System

Rachael I suggest you have a look at

http://www.ultimatehandyman.org/video/central-heating/pressurise_combi_boiler.php

a video on how to solve your problem. Why the plumbing industry creates a mystery around a simple process, God only knows.

David
November 2011

I have a flexible pipe OK but it isn't connected to anything. I can see a threaded connection to which one end will fix but nowhere for the other end to connect despite a thorough search

Rachel
November 2011

somewhere near the boiler, you will see a flexible pipe connected with a valve on, that is used to refill, turn it on slow, as you do not want to go over pressure

SD
November 2011

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