While you wait for answers, we may have found some information which could help you.
Click here for Central Heating Hot Work
Why does my boiler keep switching on and off?
My Main 30HE loses pressure over 24 hour period?
main combi 24he wont stay lit?
How can I fix my Main Combi 30HE boiler?
How can my boiler be fixed i main Medway 55/54 ?
How can I reduce the pressure on my boiler?