halstead ace high boiler keeps going to lockout?
halstead combi discharging?
My halstead ace30 DHW not getting hot ?
boiler will not stay on?
location of diaphragm on Halstead Ace HE 24 boiler?
heat exchanger replacement?
Halstead Ace HE24 Fault code ?
Fuse blew within hrs Halstead ACE HE 30 after being replaced?
halstead ace high combi keeps dropping pressure?