Hi, I have a Worcester Bosch 24i Combi boiler, serviced early this year, and have recently noticed noises from the boiler which sound like air trapped, ie slight banging and knocking.
I have looked at the instructions, and bled all rads, bled the pump from the screw in the front, and released some pressure from the pressure valve then filled back to correct pressure.
The pressure is 1.6 bar cold, and the problem starts soon after turning on the CH, and will disappear when system is warm.
The system is 2 and a half years old, so don't think sludge will be a problem.
If there is any air in the boiler part of the system, shouldn't the auto air vent get rid of this?, I did try to open it a bit and some air did seem to come out, (couldn't be sure though), or could it be faulty? Do you have any ideas?
Thanks,
Rich.
I have looked at the instructions, and bled all rads, bled the pump from the screw in the front, and released some pressure from the pressure valve then filled back to correct pressure.
The pressure is 1.6 bar cold, and the problem starts soon after turning on the CH, and will disappear when system is warm.
The system is 2 and a half years old, so don't think sludge will be a problem.
If there is any air in the boiler part of the system, shouldn't the auto air vent get rid of this?, I did try to open it a bit and some air did seem to come out, (couldn't be sure though), or could it be faulty? Do you have any ideas?
Thanks,
Rich.