Boiler Pressure Dropped

[scottpetrie]

Hi
I recently removed a radiator in my living room to decorate. I refitted it, bled it and topped up the boiler pressure. 2 weeks passed and the pressure had dropped below 1 bar and triggered an error code so the boiler wouldnt fire up. I checked everywhere and no leaks. I topped up the pressure and the boiler fired up. Could this have just been a spurious air bubble working its way up?
Thanks

 

[Wayners]

Cracked heat exchanger will cause a drop in pressure and you won't see anything.
Just monitor and if pressure drops you could have a problem

 

[Dereekoo]

Hi
I recently removed a radiator in my living room to decorate. I refitted it, bled it and topped up the boiler pressure. 2 weeks passed and the pressure had dropped below 1 bar and triggered an error code so the boiler wouldnt fire up. I checked everywhere and no leaks. I topped up the pressure and the boiler fired up. Could this have just been a spurious air bubble working its way up?
Thanks

No, air bubble is under the same pressure as the water it is contained in, where it is located or moves to makes no difference

 

[Exedon]

No, air bubble is under the same pressure as the water it is contained in, where it is located or moves to makes no difference

Unless either the boiler or heating system has a auto air valve somewhere then when air is removed pressure will drop.