I am able to get hot water as usual but every minute or so the water turns cold for 5 seconds and then returns hot. Looking at the temperature gauge while this happens it steadily increases to 90 degrees until cutting off and going cold (I assume this is the overheat protection kicking in).
Can anyone suggest how I can fix this problem myself, of is it an Engineer/new boiler job?
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!