pressure bar keeps going down

[198170918]

hi there

I found there was water leaking from one of radiators in my flat. and one of the radiator was only warm half of it. I tried to bleed the radiator.. I opened it for about 2 secs coz i smelled gas coming out and was afraid that it might explode .. then something terribly happened ... the pressure bar of my boiler showed only 0.5 bar last and this morning it was even worse . coz it showed 0 bar...no hot water . no. heating.

My boiler is SABRE HE.

What should I do? Pls help me out ...

tks in advance

 

[198170918]

I reset and turned it on again .. It worked fine .. but once I put it into auto... the pressure just went to 0 again

 

[stardanny]

Fix the leak on radiator, then re-pressure it. Combi will not work if the pressure drop below 0.5 bar.

 

[198170918]

Fix the leak on radiator, then re-pressure it. Combi will not work if the pressure drop below 0.5 bar.

I think the leak came from I tried to bleed it ... I haven't noticed any water dripping since I bled it

but now the question is, how do I re pressurise it ? coz everytime the boiler is on, 0.5 bar is as much as I can get. Heating is fine, water is warm, but it will just keep losing pressure when it's off.