baxi needs bleeding

[dapper100]

HI Guys

Just replaced some radiators and they are bleeding fine, problem is once i start up the back boiler system the air bubbles sound very bad, but only on the pipes rising from the back boiler and sealed in the chimney breast.

I was advised to drain with a air release valve up at the tank as the system needs bleeding at a central point?

anyone know where this is, i can not find it by the tank.

but I do have a type of bleeder valve sticking out the side of the chimney breast in the lounge down by the skirting.

I don't want to attempt any turn on this as untill im sure what it holds as gas and water pipes are in the same place.

Cheers

 

[LUNAT]

HI

sometimes it takes few days for all noise to disappear.in the meantime try these
1.pump speed 3
2.bleed rads again
3.look for a air vent and bleed it
4.open big screw on the pump and release air

 

[cider]

probably air traped in gravity circuit to hw cylinder just let it run with pump off and it will clear or crack heatexchanger