Halstead ace boiler locking out after 30 secs. ?
halstead combi discharging?
halstead ace high boiler keeps going to lockout?
Halstead Best 60 boiler?
Halstead Hero 60?
Fuse blew within hrs Halstead ACE HE 30 after being replaced?
heat exchanger replacement?
halstead boiler no heating just hot water?
Halstead Ace high combi boiler heating is ok but no hot water?