We may have found other answers which could help you.
Click here for Boiler Fixed MainMain 24 Combie Boiler causing power trip of all power to home?
main combi 24he wont stay lit?
Fault on fan or flue?
how to regulate gas?
Can I get the instructions to add more water to boiler pressure is just bel?
My Main 30HE loses pressure over 24 hour period?