DIY Doctor UK DIY Forums

the gas heating comes on at 08.30 hours and goes of at 22.00 hours.
from about 15.00hours loud cracking emitt from one raditor, which is turned off- any advice= charlie.

Without more info it's hard to say what it is.

Do the other radiators have TRV's fitted - my thinking is do they shut down when the rooms reach temperature ?

therefore the pump is pumping against the radiator valves on the problem radiator - which are closed. Have you tried opening the valves on that radiator does the cracking stop ??