Halstead Boiler

[neilshaw16]

i have a halstead ace boiler
the central heating still works but the hot water wont work first in the kitchen then a week later in the bathroom but sometimes during the night i can hear the boiler kick in
can any one offer any ideas
cheers

 

[spacethegas]

unfortunately its not ace.
probably the diaphragm.

 

[neilshaw16]

many thanks for your help

 

[ChrisR]

COuld be a sticky tap water flow switch. Quite common.