I have a baxi 105e system. No hot water. When the central heating is on the water is hot. I have changed the temp sensor and the diaphram but still the same. Help.
Check the Micro Switch on front of the Diaphragm, as if when on water only, if this does not make, then the Boiler will not fire up to heat Hot water only
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.