Water in Shower stops flowing after a a minutes

[Tippy]

Hi, I have a shower (don't know the make) running off my combi boiler - Saunier Duval Thermaclassic F30E. It has all worked ok for two years, now when I run a shower the water stops flowing after a minute or so. The bar pressure on the boiler is 1.2, I have increased and decreased the water temperature on the boiler to no avail.

Nothing has changed on the shower or boiler. The radiators still work, I still get hot water through the taps. I have watched the boiler while trying to run the shower but cannot see any settings change.

Any ideas are welcome.

 

[gigz]

Sounds like the guts of your shower needs attention, the pressure on your boiler is ok but this is the sealed central heating guage.

 

[Tippy]

Hi Gigz, thanks for the very prompt reply but what do you mean "the guts", do I need to call a plumber out?