Agile, good thought but I have become very used to re-pressurising the system lately !
Something has failed inorder for the HW and CH to interact. Heat exchanger is my only thought.
Local plumber suggests that Combi boilers have a life expectancy of 10years approx. Is that right ?
Good advice - thanks !!
I have also thought about replacing the whole boiler for a Highflow 440 or 550 but I will ask Worcester to look at the current on 1st.
CH off and HW off. Run the HW tap and the pressure in the CH drops.
I have a 2nd problem where the CH is drawing in air to the system.
I'm guessing their could be a heat exchanger problem & plan to replace heatexchanged & seals. I'm also suspecting the diverter valve.
Any thoughts ...