Any help please ; as plumber who attended is so far baffled!
boiler works ok on central heating but flame cuts out as soon as hot water is drawn.seal on diaphragm seemed ok but replaced just in case.
heat exchanger cleaned through in case of any muck etc .no joy
will come on occasionaly but soon cuts out
boiler works ok on central heating but flame cuts out as soon as hot water is drawn.seal on diaphragm seemed ok but replaced just in case.
heat exchanger cleaned through in case of any muck etc .no joy
will come on occasionaly but soon cuts out