Recent content by IamFreezin

Changed main circuit board and thermostatic valve on main heat exchanger. All working well now.8) Fingers crossed! it will stay that way. Thanks for the feedback. Much appreciated :wink: :wink:

Thanks for the feedback. :) Answers as follows: The gauge is the temperature gauge and not the pressure gauge The servo valve is working properly

I have a Vaillant GB 221 H Combi-Boiler and have the following problem with my central heating. Although the pump works when heating is turned on, boiler refuses to ignite. :? If boiler does ignite :shock: it cuts off after a spell of time (generally between 3 minutes to 10 minutes)...