Recent content by johnjory

Gentlemen, Subject strictly to my ".......on my head be it...." caveat above. Found the impeller rotor blades to be caked with dirt, cleaned this all off. This must improve efficiency. Also cleaned venturi with a pipe cleaner. With regard to its 'hammer' shape with air entry points...

Tony, The careful qualifications contained in your post are noted. I've already had a look at the fan assembly, and it looks pretty dirty. I posess a reasonable level of electromechanical skill & ability and cleaning the impeller/venturi does not look too much like rocket science. So on...

Dear Scatmanjohn Many thanks for that. From the posts, I was beginning to think it might be the fan efficiency. What is the process of cleaning out the fan venturi? Or is it a matter of replacing the assembly? Thanks John Jory

Dear DP Thanks for your helpful suggestion also. To answer your questions .."Does the boiler not work correctly on a calm day to start shutting down when the wind velocity is high across the flue?" A: Works correctly on calm days and on windy days. EXCEPT when wind blows directly into...

Tony, Thanks again for helpful reply. Naturally when it was discovered that such an inportant safety device had been bypassed, I had it rectified without question. No chance of reporting to CORGI, he is long gone! The nature of the fault is such that it did not occur for months, until the...

Tony, thank you for immediate reply. Flue comed through the wall horizontally and has a wire cage over it. Looks totally normal to me. Boiler has been serviced. It was this service that discovered that the microswitch on flue flow detection diaphragm had been disabled. A new diaphragm...

I have a Vokera 20-80 RS Flowmatic combi boiler. The flue has been put in an exposed position so that when the wind blows directly into the flue the boiler will not ignite. I guess the wind pressure is preventing the flue flow diaphragm switch from making. Phoned Vokera, they just said...