We may have found other answers which could help you.
Click here for Boiler Heating Kettling
Central heating not working?
My central heating is not working?
Glow worm flexicom 30cx auto air vent - how do I replace?
BMU error code?
GS 24i junior boiler timer broken?
Which way to turn slotted screw to adjust water pressure up on a glow worm ?