Cold radiators - Baxi back boiler gravity fed system

[hands2bfree]

bump mmm bump

 

[tipintim]

Sounds like you have got a blockage in the boiler/pipework. Try chemically cleaning the system. Put it in and run for a few days.
Is the pipe work on the ground floor burried in the concrete?
Can you post photos of the set up you have

 

[hands2bfree]

the pipe work is buried in concrete im afraid.

ill post some photos

ill try chemically cleaning

thanks for your help!!

 

[tipintim]

Went to a job recently where the pipework was burried. No way of draining muck out and struggled to flush because it was a one pipe system.
Customer then remembered there was a drain off in the garden for this purpose. Have a look around the out side of your buiding. His was hidden by a step!!

 

[hands2bfree]

the only other drain off i have is at the boiler, but ill look around

 

[hands2bfree]

srry i ahve one drain off on rad near front door and the additional one mentioned above by the boiler