what could be the problem when you replace your boiler but get the exact same problems. we replaced our boiler 3 years ago and have had engineers out nearly every week and they dont know what else to do. our boiler cuts out after 15 mins and its getting more difficult to get it back on again. It used to cut out only once every couple of weeks but its now down to every 15 mins. We have had a powerflush, different bits replaced and 3 weeks ago the engineer fitted a red metal sphere type thing to our pipes - he barely closed th door and the heating went off. Im beside myself im not convinced its the boiler - is there air getting in? Do you have any advice on what might be causing this? Thanks

allyb, January 2009

OK ...... I suggest that you do something drastic....
pick the nearest radiator and switch all others off .... remove this nearest radiator and join it up to a long length of strong hose so that we can see if it all geets warm (have it on a low setting) look at the colour of the water or get a Kamco test kit to see if its clean. If the boiler runs the same you will need to connect to the boiler but remember its a plastic hose... make sure that any filters on the boiler are clean...and clear its not rocket science this and as you are not touchuing the gas its all legal.but take care

fillippo (retired heating engineer), January 2009