We may have found other answers which could help you.
Click here for Combi Heating Temperature
Can I get the instructions to add more water to boiler pressure is just bel?
main combi 24he wont stay lit?
how to regulate gas?
Fault on fan or flue?
How can my boiler be fixed i main Medway 55/54 ?
My Main 30HE loses pressure over 24 hour period?