My wall mounted Ideal Classic NF50 CH boiler (1992) has started to make a clonking noise, it seems quite random in frequency but has gradually got worse over the last couple of months. Someone told me that it could be sediment in the boiler chamber. Is this possible and if so, is it curable without replacing it?
A flush out of the system will sort sediment perhaps with a cleaning agent first then inhibitor.
But I suspect the pump - take large screw out of middle ( Boiler off + rags cos of a little H2o) check spindle moving ok.
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!
by duncan1960 » Thu Jan 08, 2009 7:01 pm 
by Griggerz » Thu Feb 09, 2017 2:49 pm
