my actuator on heatline c28 is wet?
heatline compact s24 boiler?
hot water going hot and cold, burner coming on and going off?
heatline solaris?
dip switches positions ?
What can I do when my Heatline C24 boiler continuously cuts out?
Heatline combi boiler on 4 and going past what can I do?
heatline s24 compact?
heatline c24 how can i fix it?
how can i fix my heatline viso 24?
Heatline viso 24 plus pump fault?
pressure gauge has fall below 1 bar?