my boiler is not working presure gage is between 1 and 2 it ignites then goes out we have red hot radiators but when we want to use the hot water or shower it just runs cold then hot back to cold and we can hear the boiler trying to ignite but just keeps cutting out

mr outhwaite, November 2008

Is the problem just with your shower or is it also when taps are in use?
If only with the shower in use then shower head may require a clean,has it a decent flow through the head?
Also do you have mixer style taps check the flow,any significant restriction will cause your problem this may not be a boiler fault.

corgisteve, November 2008