is it normal to hear the water inside the boiler all the time after pressurise it??

[Hannah_Hannah]

is it normal to hear the water inside the boiler all the time after pressurise it??

[The Builder]

Combi boiler Hannah?

[Hannah_Hannah]

yes

[The Builder]

Co-incidentally, I've just been fitting a new rad today, opened up the valves on my Combi, pressurised to 1 bar ................ that's it. You hear the boiler fire up and the pump coming on.
What do you hear ............. still filling? ...... gurgling?
Why did you have to pressurise? Did you have a leak?

[Hannah_Hannah]

well I pressurise it because it's stopped working yesterday and the pressure was down to a little below one and it shoul be 1.5 .. but today I can hear gurgling/bubbling sound, I just want to be sure it's not dangerouse thing.

[The Builder]

Maybe you had or have a slight leak somewhere and the system has taken in air. That might cause the burbling.
Try bleeding the rads (then top up again if necessary).

[Hannah_Hannah]

so it looks like a normal problem, I will do that tomorrow.
Thank you

[AlBags]

Nope ..

Many combis have an air bleed at the top of the exchanger outlet. Check for this and bleed first.
Most likely, there is a load of air 'kettling' in hte heat exchanger.
Bleed the rest of system normally.