Thomas Dudley pneumatic flush not flushing

[gregbbb]

Hi

Just moved into a house with a Thomas Dudley pneumatic type cistern. The flush button was temporamental when we moved in - it would only flush properly if push in at the right point and right angle. Now it has given up the ghost and wont flush at all.

Rather than blindly replace parts, does anyone have any experience with these and what is most likely to be broken? Is it the button not generating enough pressure to flush or is it the unit in the cistern itself?

Cheers

Craig

 

[oilboffin]

Pull the pipes off the push button and feel if it's blowing when pressed if it is
Remake the pipe by cutting 1/2 inch off pipes and refit onto flusher try again
It might be air is leaking out of hose joints if not fit new unit