Heatline boiler showing f5 fault?
pressure gauge has fall below 1 bar?
f4 ironsation fault on boiler ?
Heatline combi boiler on 4 and going past what can I do?
How can I fix my pcb heatline s 24?
heatline solaris?
What can I do when my Heatline C24 boiler continuously cuts out?
how can i fix my heatline viso 24?
how can i fix it?
heatline s20/s30 boiler?
hot water going hot and cold, burner coming on and going off?
dip switches positions ?