worcester 9.24 problem

[bobthebuilder1965]

i have a worcester combi 9.24 boiler in my flat 15 years old in quick succesion the pump gave up the ghost then the diverter valve needed replacing now i have a new problem which goes like this hot water and heating is very hot even when the temperature dial is at its lowest point if i move the dial up to anything near the max the pressure starts heading up eventually cutting out boiler i replaced the bits myself and have read that you should bleed the heat ex could this be problem or expansion vessel any ideas?

 

[Agile]

Your boiler is very old!

Pumps usually fail due to dirt in the system.

The diverter fails or jams after a number od years and due to dirt..

High temperatures usually indicate a failure of the control system.

Tony

 

[namsag]

Now getting on up to 23 year old.

 

[GodKnows]

With you "changing," the bits yourself I guess you regularly serviced the boiler as per MI's every year? I am surprised it has lasted this long without proper maintenance... Those parts are quite a few pennies, I wouls recommend you consider a new boiler. New money into an old boiler isn't cost effective if it is over 10 yrs old.... But, on a plus point, iy has had a good innings