Bleeding Radiators/Combi Boiler low pressure

Standard Toaster

I'm in the process of bleeding the rads in the house here. Can't believe the amount of trapped air in the system.
Anyway, there's a combi boiler, or at least that's what I think they're called, with a pressure guage on it. It's running at 0.02/0.03 bar.
It says on the front panel diagram that normal bar should be between 1.0 -2.0

Now, the question.
Will bleeding the rads effect this pressure?
Should I be bleeding them if the pressure is that low?
Finally, is there anyway, from the boiler, to get that pressure up? (valves, etc)

You can tell I'm not a genius when it come to this kinda thing but bleeding a rad I think I'm ok with.

Cheers.

Corkey123

It is unlikely you will able to bleed the rads as the air is forced out by the pressure within the system. You must first pressurise the system and then bleed. The bleeding will, depending of the amount of air, reduce the pressure again. So you may need to pressuise and bleed a couple of time before you get water from the rad indicating to close the bleed valve.

The pressure gauge should show at least 1, this is achieved by opening a valve to allow the mains to feed the system. If there isn't a value you might find the gauge itself will have a valve either on the top or bottom.

Standard Toaster

Cheers Martin.
This is the boiler:



And this is underneath:



i know the middle valve is the gas.

And this is the side:



Can you point out which one is the valve that needs seeing to?

Cheers

Standard Toaster

Ah, not to worry. Figuered it out.
It's the black valve in the third pic.
Thanks.:)