Greenstar boiler won't repressurise

[winterveg]

Looking for help - I've got a Worcester Bosch Greenstar boiler, 3 months old, that I can't repressurise.

Any help much appreciated, evening temp is dropping fast and we're getting chilly...

Thanks!

I just bled a radiator for about 10 seconds, and after that the boiler's pressure had dropped to zero from ~1 bar.

But when I tried to repressurise it for 5-10 seconds, I heard water flowing but the pressure gauge stays at zero. Photo of the filling loop key (now back in default position).

I switched the heating on and the radiators started warming up but there was some weird noisy gurgling coming from the pipes under the boiler so I switched the heating off again.

Any ideas why it won't repressurise?

 

[terryplumb]

The key should be pushed fully upwards and turned until it locks into position.
Then you turn the small white ,square, clockwise a full turn.
Is this what you did ?
May take more than 10 seconds.

 

[polesapart]

Do you hear water flow when you open the square-shanked valve?

 

[winterveg]

Thanks for the replies, appreciate it.

I've sorted it out now - I just needed to turn the square valve much further.

Thought I needed a plumber but was just being a plum