Heatline boiler ignites and then the flame goes out?
heatline vizo pressurizing?
heatline compact s24 boiler?
f4 ironsation fault on boiler ?
pressure gauge has fall below 1 bar?
Heatline boiler showing f5 fault?
hot water flow problem?
problems with hot water on heatline viso 24?
hot water going hot and cold, burner coming on and going off?