hot water boiler

I have a Heatline Capriz 28 boiler. New Heat exchanger, new diverter valve, new outlet let pipe. Central Heating works fine, but the problem is with the hot water. When turning the tap on, the water temp is not consistent e.g. hot, warm, cold on loop. The flame indicator on the boiler switches...

I'm looking to drain down my hot water (tap) pipe before replacing 15mm with 22mm hot water pipe. I have added a 15mm drain valve to my cold water pipe and plan to do the same to my hot water pipe. This is to stop, after I turn the boiler off and cut the hot water (tap) pipe from leaking...

Hello everyone. I have a Hanstrom hot water tap with an under-sink boiler. A few days ago it started beeping and showing E4 on the display. We can't set the temperature or reset it. Changing the filter didn't help so I disconnected it, put descaler in (Hanstrom suggested this) for about an hour...