I changed my cylinder recently which was a success, eventually. However I seem to have a problem with the boiler getting noisy when heating HW only.
There appears to be two valves on the HW circuit which I fiddled with during another problem (I know I should have left them alone). What do they do one appears to be a gate valve which can only be operated with a spanner and one has a brass tube (lock shield?) around the spindle.
What is their function and is there a way of setting them up.
Thanks for any advice
Regards
John
There appears to be two valves on the HW circuit which I fiddled with during another problem (I know I should have left them alone). What do they do one appears to be a gate valve which can only be operated with a spanner and one has a brass tube (lock shield?) around the spindle.
What is their function and is there a way of setting them up.
Thanks for any advice
Regards
John